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[2.0.x] LIN_ADVANCE v1.5 (#9712)

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Scott Lahteine 2018-02-23 00:53:29 -06:00 committed by GitHub
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52 changed files with 890 additions and 1671 deletions
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46
Marlin/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/default/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Anet/A6/Configuration_adv.h
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@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Anet/A8/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Azteeg/X5GT/Configuration_adv.h
View File

@ -712,43 +712,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/BIBO/TouchX/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Cartesio/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Creality/Ender/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Felix/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/MakerParts/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Malyan/M150/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Malyan/M200/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h
View File

@ -719,43 +719,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/RigidBot/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/SCARA/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Sanguinololu/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/TheBorg/Configuration_adv.h
View File

@ -708,43 +708,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/TinyBoy2/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h
View File

@ -724,43 +724,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 140 // start value for PLA on K8200 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
#define LIN_ADVANCE #define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 0 #define LIN_ADVANCE_K 0 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/FLSUN/kossel/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/generic/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/kossel_pro/Configuration_adv.h
View File

@ -718,43 +718,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h
View File

@ -713,43 +713,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/makibox/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h
View File

@ -711,43 +711,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

46
Marlin/src/config/examples/wt150/Configuration_adv.h
View File

@ -712,43 +712,25 @@
// @section extruder // @section extruder
/** /**
* Implementation of linear pressure control * Linear Pressure Control v1.5
* *
* Assumption: advance = k * (delta velocity) * Assumption: advance [steps] = k * (delta velocity [steps/s])
* K=0 means advance disabled. * K=0 means advance disabled.
* See Marlin documentation for calibration instructions. *
* NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
*
* Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
* Larger K values will be needed for flexible filament and greater distances.
* If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
* print acceleration will be reduced during the affected moves to keep within the limit.
*
* See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
* Mention @Sebastianv650 on GitHub to alert the author of any issues.
*/ */
//#define LIN_ADVANCE //#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
#define LIN_ADVANCE_K 75 #define LIN_ADVANCE_K 0.22 // Unit: mm compression per 1mm/s extruder speed
//#define LA_DEBUG // If enabled, this will generate debug information output over USB.
/**
* Some Slicers produce Gcode with randomly jumping extrusion widths occasionally.
* For example within a 0.4mm perimeter it may produce a single segment of 0.05mm width.
* While this is harmless for normal printing (the fluid nature of the filament will
* close this very, very tiny gap), it throws off the LIN_ADVANCE pressure adaption.
*
* For this case LIN_ADVANCE_E_D_RATIO can be used to set the extrusion:distance ratio
* to a fixed value. Note that using a fixed ratio will lead to wrong nozzle pressures
* if the slicer is using variable widths or layer heights within one print!
*
* This option sets the default E:D ratio at startup. Use `M900` to override this value.
*
* Example: `M900 W0.4 H0.2 D1.75`, where:
* - W is the extrusion width in mm
* - H is the layer height in mm
* - D is the filament diameter in mm
*
* Example: `M900 R0.0458` to set the ratio directly.
*
* Set to 0 to auto-detect the ratio based on given Gcode G1 print moves.
*
* Slic3r (including Průša Control) produces Gcode compatible with the automatic mode.
* Cura (as of this writing) may produce Gcode incompatible with the automatic mode.
*/
#define LIN_ADVANCE_E_D_RATIO 0 // The calculated ratio (or 0) according to the formula W * H / ((D / 2) ^ 2 * PI)
// Example: 0.4 * 0.2 / ((1.75 / 2) ^ 2 * PI) = 0.033260135
#endif #endif
// @section leveling // @section leveling

29
Marlin/src/gcode/feature/advance/M900.cpp
View File

@ -29,34 +29,19 @@
#include "../../../module/stepper.h" #include "../../../module/stepper.h"
/** /**
* M900: Set and/or Get advance K factor and WH/D ratio * M900: Set and/or Get advance K factor
* *
* K<factor> Set advance K factor * K<factor> Set advance K factor
* R<ratio> Set ratio directly (overrides WH/D)
* W<width> H<height> D<diam> Set ratio from WH/D
*/ */
void GcodeSuite::M900() { void GcodeSuite::M900() {
stepper.synchronize(); stepper.synchronize();
const float newK = parser.floatval('K', -1); const float newK = parser.floatval('K', -1);
if (newK >= 0) planner.extruder_advance_k = newK; if (newK >= 0) planner.extruder_advance_K = newK;
float newR = parser.floatval('R', -1); SERIAL_ECHO_START();
if (newR < 0) { SERIAL_ECHOPAIR("Advance K=", planner.extruder_advance_K);
const float newD = parser.floatval('D', -1), SERIAL_EOL();
newW = parser.floatval('W', -1),
newH = parser.floatval('H', -1);
if (newD >= 0 && newW >= 0 && newH >= 0)
newR = newD ? (newW * newH) / CIRCLE_AREA(newD * 0.5) : 0;
}
if (newR >= 0) planner.advance_ed_ratio = newR;
SERIAL_ECHO_START();
SERIAL_ECHOPAIR("Advance K=", planner.extruder_advance_k);
SERIAL_ECHOPGM(" E/D=");
const float ratio = planner.advance_ed_ratio;
if (ratio) SERIAL_ECHO(ratio); else SERIAL_ECHOPGM("Auto");
SERIAL_EOL();
} }
#endif // LIN_ADVANCE #endif // LIN_ADVANCE

6
Marlin/src/inc/Conditionals_LCD.h
View File

@ -399,7 +399,6 @@
* HOTENDS - Number of hotends, whether connected or separate * HOTENDS - Number of hotends, whether connected or separate
* E_STEPPERS - Number of actual E stepper motors * E_STEPPERS - Number of actual E stepper motors
* E_MANUAL - Number of E steppers for LCD move options * E_MANUAL - Number of E steppers for LCD move options
* TOOL_E_INDEX - Index to use when getting/setting the tool state
* *
*/ */
#if ENABLED(SINGLENOZZLE) || ENABLED(MIXING_EXTRUDER) // One hotend, one thermistor, no XY offset #if ENABLED(SINGLENOZZLE) || ENABLED(MIXING_EXTRUDER) // One hotend, one thermistor, no XY offset
@ -426,24 +425,19 @@
#if EXTRUDERS > 4 #if EXTRUDERS > 4
#define E_STEPPERS 3 #define E_STEPPERS 3
#define E_MANUAL 3 #define E_MANUAL 3
#define TOOL_E_INDEX current_block->active_extruder
#elif EXTRUDERS > 2 #elif EXTRUDERS > 2
#define E_STEPPERS 2 #define E_STEPPERS 2
#define E_MANUAL 2 #define E_MANUAL 2
#define TOOL_E_INDEX current_block->active_extruder
#else #else
#define E_STEPPERS 1 #define E_STEPPERS 1
#define TOOL_E_INDEX 0
#endif #endif
#define E_MANUAL E_STEPPERS #define E_MANUAL E_STEPPERS
#elif ENABLED(MIXING_EXTRUDER) #elif ENABLED(MIXING_EXTRUDER)
#define E_STEPPERS MIXING_STEPPERS #define E_STEPPERS MIXING_STEPPERS
#define E_MANUAL 1 #define E_MANUAL 1
#define TOOL_E_INDEX 0
#else #else
#define E_STEPPERS EXTRUDERS #define E_STEPPERS EXTRUDERS
#define E_MANUAL EXTRUDERS #define E_MANUAL EXTRUDERS
#define TOOL_E_INDEX current_block->active_extruder
#endif #endif
/** /**

6
Marlin/src/inc/SanityCheck.h
View File

@ -223,6 +223,8 @@
#error "MIN_RETRACT is now MIN_AUTORETRACT and MAX_AUTORETRACT. Please update your Configuration_adv.h." #error "MIN_RETRACT is now MIN_AUTORETRACT and MAX_AUTORETRACT. Please update your Configuration_adv.h."
#elif defined(ADVANCE) #elif defined(ADVANCE)
#error "ADVANCE was removed in Marlin 1.1.6. Please use LIN_ADVANCE." #error "ADVANCE was removed in Marlin 1.1.6. Please use LIN_ADVANCE."
#elif defined(LIN_ADVANCE_E_D_RATIO)
#error "LIN_ADVANCE (1.5) no longer uses LIN_ADVANCE_E_D_RATIO. Check your configuration."
#elif defined(NEOPIXEL_RGBW_LED) #elif defined(NEOPIXEL_RGBW_LED)
#error "NEOPIXEL_RGBW_LED is now NEOPIXEL_LED. Please update your configuration." #error "NEOPIXEL_RGBW_LED is now NEOPIXEL_LED. Please update your configuration."
#elif defined(UBL_MESH_INSET) #elif defined(UBL_MESH_INSET)
@ -552,10 +554,6 @@ static_assert(X_MAX_LENGTH >= X_BED_SIZE && Y_MAX_LENGTH >= Y_BED_SIZE,
#endif #endif
#endif #endif
#if ENABLED(LIN_ADVANCE) && !IS_CARTESIAN
#error "Sorry! LIN_ADVANCE is only compatible with Cartesian."
#endif
/** /**
* Parking Extruder requirements * Parking Extruder requirements
*/ */

4
Marlin/src/lcd/ultralcd.cpp
View File

@ -3228,7 +3228,7 @@ void kill_screen(const char* lcd_msg) {
#if DISABLED(NO_VOLUMETRICS) || ENABLED(ADVANCED_PAUSE_FEATURE) #if DISABLED(NO_VOLUMETRICS) || ENABLED(ADVANCED_PAUSE_FEATURE)
MENU_ITEM(submenu, MSG_FILAMENT, lcd_control_filament_menu); MENU_ITEM(submenu, MSG_FILAMENT, lcd_control_filament_menu);
#elif ENABLED(LIN_ADVANCE) #elif ENABLED(LIN_ADVANCE)
MENU_ITEM_EDIT(float3, MSG_ADVANCE_K, &planner.extruder_advance_k, 0, 999); MENU_ITEM_EDIT(float32, MSG_ADVANCE_K, &planner.extruder_advance_K, 0, 999);
#endif #endif
#if HAS_LCD_CONTRAST #if HAS_LCD_CONTRAST
@ -3742,7 +3742,7 @@ void kill_screen(const char* lcd_msg) {
MENU_BACK(MSG_CONTROL); MENU_BACK(MSG_CONTROL);
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
MENU_ITEM_EDIT(float3, MSG_ADVANCE_K, &planner.extruder_advance_k, 0, 999); MENU_ITEM_EDIT(float32, MSG_ADVANCE_K, &planner.extruder_advance_K, 0, 999);
#endif #endif
#if DISABLED(NO_VOLUMETRICS) #if DISABLED(NO_VOLUMETRICS)

23
Marlin/src/module/configuration_store.cpp
View File

@ -37,7 +37,7 @@
*/ */
// Change EEPROM version if the structure changes // Change EEPROM version if the structure changes
#define EEPROM_VERSION "V51" #define EEPROM_VERSION "V52"
#define EEPROM_OFFSET 100 #define EEPROM_OFFSET 100
// Check the integrity of data offsets. // Check the integrity of data offsets.
@ -225,8 +225,7 @@ typedef struct SettingsDataStruct {
// //
// LIN_ADVANCE // LIN_ADVANCE
// //
float planner_extruder_advance_k, // M900 K planner.extruder_advance_k float planner_extruder_advance_K; // M900 K planner.extruder_advance_K
planner_advance_ed_ratio; // M900 WHD planner.advance_ed_ratio
// //
// HAS_MOTOR_CURRENT_PWM // HAS_MOTOR_CURRENT_PWM
@ -751,15 +750,13 @@ void MarlinSettings::postprocess() {
// Linear Advance // Linear Advance
// //
_FIELD_TEST(planner_extruder_advance_k); _FIELD_TEST(planner_extruder_advance_K);
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
EEPROM_WRITE(planner.extruder_advance_k); EEPROM_WRITE(planner.extruder_advance_K);
EEPROM_WRITE(planner.advance_ed_ratio);
#else #else
dummy = 0.0f; dummy = 0.0f;
EEPROM_WRITE(dummy); EEPROM_WRITE(dummy);
EEPROM_WRITE(dummy);
#endif #endif
_FIELD_TEST(motor_current_setting); _FIELD_TEST(motor_current_setting);
@ -1301,14 +1298,12 @@ void MarlinSettings::postprocess() {
// Linear Advance // Linear Advance
// //
_FIELD_TEST(planner_extruder_advance_k); _FIELD_TEST(planner_extruder_advance_K);
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
EEPROM_READ(planner.extruder_advance_k); EEPROM_READ(planner.extruder_advance_K);
EEPROM_READ(planner.advance_ed_ratio);
#else #else
EEPROM_READ(dummy); EEPROM_READ(dummy);
EEPROM_READ(dummy);
#endif #endif
// //
@ -1832,8 +1827,7 @@ void MarlinSettings::reset(
#endif #endif
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
planner.extruder_advance_k = LIN_ADVANCE_K; planner.extruder_advance_K = LIN_ADVANCE_K;
planner.advance_ed_ratio = LIN_ADVANCE_E_D_RATIO;
#endif #endif
#if HAS_MOTOR_CURRENT_PWM #if HAS_MOTOR_CURRENT_PWM
@ -2409,8 +2403,7 @@ void MarlinSettings::reset(
SERIAL_ECHOLNPGM_P(port, "Linear Advance:"); SERIAL_ECHOLNPGM_P(port, "Linear Advance:");
} }
CONFIG_ECHO_START; CONFIG_ECHO_START;
SERIAL_ECHOPAIR_P(port, " M900 K", planner.extruder_advance_k); SERIAL_ECHOLNPAIR_P(port, " M900 K", planner.extruder_advance_K);
SERIAL_ECHOLNPAIR_P(port, " R", planner.advance_ed_ratio);
#endif #endif
#if HAS_MOTOR_CURRENT_PWM #if HAS_MOTOR_CURRENT_PWM

234
Marlin/src/module/planner.cpp
View File

@ -185,11 +185,8 @@ float Planner::previous_speed[NUM_AXIS],
#endif #endif
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
float Planner::extruder_advance_k, // Initialized by settings.load() float Planner::extruder_advance_K, // Initialized by settings.load()
Planner::advance_ed_ratio, // Initialized by settings.load() Planner::position_float[XYZE]; // Needed for accurate maths. Steps cannot be used!
Planner::position_float[XYZE], // Needed for accurate maths. Steps cannot be used!
Planner::lin_dist_xy,
Planner::lin_dist_e;
#endif #endif
#if ENABLED(ULTRA_LCD) #if ENABLED(ULTRA_LCD)
@ -364,6 +361,13 @@ void Planner::recalculate_trapezoids() {
// NOTE: Entry and exit factors always > 0 by all previous logic operations. // NOTE: Entry and exit factors always > 0 by all previous logic operations.
const float nomr = 1.0 / current->nominal_speed; const float nomr = 1.0 / current->nominal_speed;
calculate_trapezoid_for_block(current, current->entry_speed * nomr, next->entry_speed * nomr); calculate_trapezoid_for_block(current, current->entry_speed * nomr, next->entry_speed * nomr);
#if ENABLED(LIN_ADVANCE)
if (current->use_advance_lead) {
const float comp = current->e_D_ratio * extruder_advance_K * axis_steps_per_mm[E_AXIS];
current->max_adv_steps = current->nominal_speed * comp;
current->final_adv_steps = next->entry_speed * comp;
}
#endif
CBI(current->flag, BLOCK_BIT_RECALCULATE); // Reset current only to ensure next trapezoid is computed CBI(current->flag, BLOCK_BIT_RECALCULATE); // Reset current only to ensure next trapezoid is computed
} }
} }
@ -373,6 +377,13 @@ void Planner::recalculate_trapezoids() {
if (next) { if (next) {
const float nomr = 1.0 / next->nominal_speed; const float nomr = 1.0 / next->nominal_speed;
calculate_trapezoid_for_block(next, next->entry_speed * nomr, (MINIMUM_PLANNER_SPEED) * nomr); calculate_trapezoid_for_block(next, next->entry_speed * nomr, (MINIMUM_PLANNER_SPEED) * nomr);
#if ENABLED(LIN_ADVANCE)
if (next->use_advance_lead) {
const float comp = next->e_D_ratio * extruder_advance_K * axis_steps_per_mm[E_AXIS];
next->max_adv_steps = next->nominal_speed * comp;
next->final_adv_steps = (MINIMUM_PLANNER_SPEED) * comp;
}
#endif
CBI(next->flag, BLOCK_BIT_RECALCULATE); CBI(next->flag, BLOCK_BIT_RECALCULATE);
} }
} }
@ -730,7 +741,12 @@ void Planner::check_axes_activity() {
* fr_mm_s - (target) speed of the move * fr_mm_s - (target) speed of the move
* extruder - target extruder * extruder - target extruder
*/ */
void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const uint8_t extruder, const float &millimeters /*= 0.0*/) { void Planner::_buffer_steps(const int32_t (&target)[XYZE]
#if ENABLED(LIN_ADVANCE)
, const float (&target_float)[XYZE]
#endif
, float fr_mm_s, const uint8_t extruder, const float &millimeters/*=0.0*/
) {
const int32_t da = target[A_AXIS] - position[A_AXIS], const int32_t da = target[A_AXIS] - position[A_AXIS],
db = target[B_AXIS] - position[B_AXIS], db = target[B_AXIS] - position[B_AXIS],
@ -751,13 +767,14 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
SERIAL_ECHOLNPGM(" steps)"); SERIAL_ECHOLNPGM(" steps)");
//*/ //*/
// If LIN_ADVANCE is disabled then do E move prevention with integers #if ENABLED(PREVENT_COLD_EXTRUSION) || ENABLED(PREVENT_LENGTHY_EXTRUDE)
// Otherwise it's done in _buffer_segment.
#if DISABLED(LIN_ADVANCE) && (ENABLED(PREVENT_COLD_EXTRUSION) || ENABLED(PREVENT_LENGTHY_EXTRUDE))
if (de) { if (de) {
#if ENABLED(PREVENT_COLD_EXTRUSION) #if ENABLED(PREVENT_COLD_EXTRUSION)
if (thermalManager.tooColdToExtrude(extruder)) { if (thermalManager.tooColdToExtrude(extruder)) {
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = target_float[E_AXIS];
#endif
de = 0; // no difference de = 0; // no difference
SERIAL_ECHO_START(); SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP); SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
@ -766,13 +783,16 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
#if ENABLED(PREVENT_LENGTHY_EXTRUDE) #if ENABLED(PREVENT_LENGTHY_EXTRUDE)
if (labs(de * e_factor[extruder]) > (int32_t)axis_steps_per_mm[E_AXIS_N] * (EXTRUDE_MAXLENGTH)) { // It's not important to get max. extrusion length in a precision < 1mm, so save some cycles and cast to int if (labs(de * e_factor[extruder]) > (int32_t)axis_steps_per_mm[E_AXIS_N] * (EXTRUDE_MAXLENGTH)) { // It's not important to get max. extrusion length in a precision < 1mm, so save some cycles and cast to int
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = target_float[E_AXIS];
#endif
de = 0; // no difference de = 0; // no difference
SERIAL_ECHO_START(); SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP); SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP);
} }
#endif // PREVENT_LENGTHY_EXTRUDE #endif // PREVENT_LENGTHY_EXTRUDE
} }
#endif // !LIN_ADVANCE && (PREVENT_COLD_EXTRUSION || PREVENT_LENGTHY_EXTRUDE) #endif // PREVENT_COLD_EXTRUSION || PREVENT_LENGTHY_EXTRUDE
// Compute direction bit-mask for this block // Compute direction bit-mask for this block
uint8_t dm = 0; uint8_t dm = 0;
@ -1189,6 +1209,9 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
if (!block->steps[A_AXIS] && !block->steps[B_AXIS] && !block->steps[C_AXIS]) { if (!block->steps[A_AXIS] && !block->steps[B_AXIS] && !block->steps[C_AXIS]) {
// convert to: acceleration steps/sec^2 // convert to: acceleration steps/sec^2
accel = CEIL(retract_acceleration * steps_per_mm); accel = CEIL(retract_acceleration * steps_per_mm);
#if ENABLED(LIN_ADVANCE)
block->use_advance_lead = false;
#endif
} }
else { else {
#define LIMIT_ACCEL_LONG(AXIS,INDX) do{ \ #define LIMIT_ACCEL_LONG(AXIS,INDX) do{ \
@ -1208,6 +1231,47 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
// Start with print or travel acceleration // Start with print or travel acceleration
accel = CEIL((esteps ? acceleration : travel_acceleration) * steps_per_mm); accel = CEIL((esteps ? acceleration : travel_acceleration) * steps_per_mm);
#if ENABLED(LIN_ADVANCE)
/**
*
* Use LIN_ADVANCE for blocks if all these are true:
*
* esteps : This is a print move, because we checked for A, B, C steps before.
*
* extruder_advance_K : There is an advance factor set.
*
* de > 0 : Extruder is running forward (e.g., for "Wipe while retracting" (Slic3r) or "Combing" (Cura) moves)
*/
block->use_advance_lead = esteps
&& extruder_advance_K
&& de > 0;
if (block->use_advance_lead) {
block->e_D_ratio = (target_float[E_AXIS] - position_float[E_AXIS]) /
#if IS_KINEMATIC
block->millimeters
#else
SQRT(sq(target_float[X_AXIS] - position_float[X_AXIS])
+ sq(target_float[Y_AXIS] - position_float[Y_AXIS])
+ sq(target_float[Z_AXIS] - position_float[Z_AXIS]))
#endif
;
// Check for unusual high e_D ratio to detect if a retract move was combined with the last print move due to min. steps per segment. Never execute this with advance!
// This assumes no one will use a retract length of 0mm < retr_length < ~0.2mm and no one will print 100mm wide lines using 3mm filament or 35mm wide lines using 1.75mm filament.
if (block->e_D_ratio > 3.0)
block->use_advance_lead = false;
else {
const uint32_t max_accel_steps_per_s2 = max_jerk[E_AXIS] / (extruder_advance_K * block->e_D_ratio) * steps_per_mm;
#if ENABLED(LA_DEBUG)
if (accel > max_accel_steps_per_s2)
SERIAL_ECHOLNPGM("Acceleration limited.");
#endif
NOMORE(accel, max_accel_steps_per_s2);
}
}
#endif
#if ENABLED(DISTINCT_E_FACTORS) #if ENABLED(DISTINCT_E_FACTORS)
#define ACCEL_IDX extruder #define ACCEL_IDX extruder
#else #else
@ -1230,7 +1294,18 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
} }
block->acceleration_steps_per_s2 = accel; block->acceleration_steps_per_s2 = accel;
block->acceleration = accel / steps_per_mm; block->acceleration = accel / steps_per_mm;
block->acceleration_rate = (long)(accel * 16777216.0 / (HAL_STEPPER_TIMER_RATE)); // 16777216 = <<24 block->acceleration_rate = (long)(accel * 16777216.0 / ((F_CPU) * 0.125)); // * 8.388608
#if ENABLED(LIN_ADVANCE)
if (block->use_advance_lead) {
block->advance_speed = ((F_CPU) * 0.125) / (extruder_advance_K * block->e_D_ratio * block->acceleration * axis_steps_per_mm[E_AXIS_N]);
#if ENABLED(LA_DEBUG)
if (extruder_advance_K * block->e_D_ratio * block->acceleration * 2 < block->nominal_speed * block->e_D_ratio)
SERIAL_ECHOLNPGM("More than 2 steps per eISR loop executed.");
if (block->advance_speed < 200)
SERIAL_ECHOLNPGM("eISR running at > 10kHz.");
#endif
}
#endif
// Initial limit on the segment entry velocity // Initial limit on the segment entry velocity
float vmax_junction; float vmax_junction;
@ -1386,41 +1461,15 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
previous_nominal_speed = block->nominal_speed; previous_nominal_speed = block->nominal_speed;
previous_safe_speed = safe_speed; previous_safe_speed = safe_speed;
#if ENABLED(LIN_ADVANCE)
/**
*
* Use LIN_ADVANCE for blocks if all these are true:
*
* esteps && (block->steps[X_AXIS] || block->steps[Y_AXIS]) : This is a print move
*
* extruder_advance_k : There is an advance factor set.
*
* esteps != block->step_event_count : A problem occurs if the move before a retract is too small.
* In that case, the retract and move will be executed together.
* This leads to too many advance steps due to a huge e_acceleration.
* The math is good, but we must avoid retract moves with advance!
* lin_dist_e > 0 : Extruder is running forward (e.g., for "Wipe while retracting" (Slic3r) or "Combing" (Cura) moves)
*/
block->use_advance_lead = esteps && (block->steps[X_AXIS] || block->steps[Y_AXIS])
&& extruder_advance_k
&& (uint32_t)esteps != block->step_event_count
&& lin_dist_e > 0;
if (block->use_advance_lead)
block->abs_adv_steps_multiplier8 = LROUND(
extruder_advance_k
* (UNEAR_ZERO(advance_ed_ratio) ? lin_dist_e / lin_dist_xy : advance_ed_ratio) // Use the fixed ratio, if set
* (block->nominal_speed / (float)block->nominal_rate)
* axis_steps_per_mm[E_AXIS_N] * 256.0
);
#endif // LIN_ADVANCE
// Move buffer head // Move buffer head
block_buffer_head = next_buffer_head; block_buffer_head = next_buffer_head;
// Update the position (only when a move was queued) // Update the position (only when a move was queued)
static_assert(COUNT(target) > 1, "Parameter to _buffer_steps must be (&target)[XYZE]!"); static_assert(COUNT(target) > 1, "Parameter to _buffer_steps must be (&target)[XYZE]!");
COPY(position, target); COPY(position, target);
#if ENABLED(LIN_ADVANCE)
COPY(position_float, target_float);
#endif
recalculate(); recalculate();
@ -1438,7 +1487,7 @@ void Planner::_buffer_steps(const int32_t (&target)[ABCE], float fr_mm_s, const
* extruder - target extruder * extruder - target extruder
* millimeters - the length of the movement, if known * millimeters - the length of the movement, if known
*/ */
void Planner::buffer_segment(const float &a, const float &b, const float &c, const float &e, const float &fr_mm_s, const uint8_t extruder, const float &millimeters /*= 0.0*/) { void Planner::buffer_segment(const float &a, const float &b, const float &c, const float &e, const float &fr_mm_s, const uint8_t extruder, const float &millimeters/*=0.0*/) {
// When changing extruders recalculate steps corresponding to the E position // When changing extruders recalculate steps corresponding to the E position
#if ENABLED(DISTINCT_E_FACTORS) #if ENABLED(DISTINCT_E_FACTORS)
if (last_extruder != extruder && axis_steps_per_mm[E_AXIS_N] != axis_steps_per_mm[E_AXIS + last_extruder]) { if (last_extruder != extruder && axis_steps_per_mm[E_AXIS_N] != axis_steps_per_mm[E_AXIS + last_extruder]) {
@ -1456,6 +1505,18 @@ void Planner::buffer_segment(const float &a, const float &b, const float &c, con
LROUND(e * axis_steps_per_mm[E_AXIS_N]) LROUND(e * axis_steps_per_mm[E_AXIS_N])
}; };
#if ENABLED(LIN_ADVANCE)
const float target_float[XYZE] = { a, b, c, e };
#endif
// DRYRUN prevents E moves from taking place
if (DEBUGGING(DRYRUN)) {
position[E_AXIS] = target[E_AXIS];
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = e;
#endif
}
/* <-- add a slash to enable /* <-- add a slash to enable
SERIAL_ECHOPAIR(" buffer_segment FR:", fr_mm_s); SERIAL_ECHOPAIR(" buffer_segment FR:", fr_mm_s);
#if IS_KINEMATIC #if IS_KINEMATIC
@ -1484,85 +1545,48 @@ void Planner::buffer_segment(const float &a, const float &b, const float &c, con
SERIAL_ECHOLNPGM(")"); SERIAL_ECHOLNPGM(")");
//*/ //*/
// DRYRUN prevents E moves from taking place
if (DEBUGGING(DRYRUN)) {
position[E_AXIS] = target[E_AXIS];
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = e;
#endif
}
#if ENABLED(LIN_ADVANCE)
lin_dist_e = e - position_float[E_AXIS];
#endif
// If LIN_ADVANCE is enabled then do E move prevention with floats
// Otherwise it's done in _buffer_steps.
#if ENABLED(LIN_ADVANCE) && (ENABLED(PREVENT_COLD_EXTRUSION) || ENABLED(PREVENT_LENGTHY_EXTRUDE))
if (lin_dist_e) {
#if ENABLED(PREVENT_COLD_EXTRUSION)
if (thermalManager.tooColdToExtrude(extruder)) {
position_float[E_AXIS] = e; // Behave as if the move really took place, but ignore E part
position[E_AXIS] = target[E_AXIS];
lin_dist_e = 0;
SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
}
#endif // PREVENT_COLD_EXTRUSION
#if ENABLED(PREVENT_LENGTHY_EXTRUDE)
if (lin_dist_e * e_factor[extruder] > (EXTRUDE_MAXLENGTH)) {
position_float[E_AXIS] = e; // Behave as if the move really took place, but ignore E part
position[E_AXIS] = target[E_AXIS];
lin_dist_e = 0;
SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP);
}
#endif // PREVENT_LENGTHY_EXTRUDE
}
#endif // LIN_ADVANCE && (PREVENT_COLD_EXTRUSION || PREVENT_LENGTHY_EXTRUDE)
#if ENABLED(LIN_ADVANCE)
if (lin_dist_e > 0)
lin_dist_xy = HYPOT(a - position_float[X_AXIS], b - position_float[Y_AXIS]);
#endif
// Always split the first move into two (if not homing or probing) // Always split the first move into two (if not homing or probing)
if (!blocks_queued()) { if (!blocks_queued()) {
#define _BETWEEN(A) (position[A##_AXIS] + target[A##_AXIS]) >> 1 #define _BETWEEN(A) (position[A##_AXIS] + target[A##_AXIS]) >> 1
const int32_t between[ABCE] = { _BETWEEN(A), _BETWEEN(B), _BETWEEN(C), _BETWEEN(E) }; const int32_t between[ABCE] = { _BETWEEN(A), _BETWEEN(B), _BETWEEN(C), _BETWEEN(E) };
#if ENABLED(LIN_ADVANCE)
#define _BETWEEN_F(A) (position_float[A##_AXIS] + target_float[A##_AXIS]) * 0.5
const float between_float[ABCE] = { _BETWEEN_F(A), _BETWEEN_F(B), _BETWEEN_F(C), _BETWEEN_F(E) };
#endif
DISABLE_STEPPER_DRIVER_INTERRUPT(); DISABLE_STEPPER_DRIVER_INTERRUPT();
#if ENABLED(LIN_ADVANCE) _buffer_steps(between
lin_dist_xy *= 0.5; #if ENABLED(LIN_ADVANCE)
lin_dist_e *= 0.5; , between_float
#endif #endif
, fr_mm_s, extruder, millimeters * 0.5
_buffer_steps(between, fr_mm_s, extruder, millimeters * 0.5); );
#if ENABLED(LIN_ADVANCE)
position_float[X_AXIS] = (position_float[X_AXIS] + a) * 0.5;
position_float[Y_AXIS] = (position_float[Y_AXIS] + b) * 0.5;
//position_float[Z_AXIS] = (position_float[Z_AXIS] + c) * 0.5;
position_float[E_AXIS] = (position_float[E_AXIS] + e) * 0.5;
#endif
const uint8_t next = block_buffer_head; const uint8_t next = block_buffer_head;
_buffer_steps(target, fr_mm_s, extruder, millimeters * 0.5);
_buffer_steps(target
#if ENABLED(LIN_ADVANCE)
, target_float
#endif
, fr_mm_s, extruder, millimeters * 0.5
);
SBI(block_buffer[next].flag, BLOCK_BIT_CONTINUED); SBI(block_buffer[next].flag, BLOCK_BIT_CONTINUED);
ENABLE_STEPPER_DRIVER_INTERRUPT(); ENABLE_STEPPER_DRIVER_INTERRUPT();
} }
else else
_buffer_steps(target, fr_mm_s, extruder, millimeters); _buffer_steps(target
#if ENABLED(LIN_ADVANCE)
, target_float
#endif
, fr_mm_s, extruder, millimeters
);
stepper.wake_up(); stepper.wake_up();
#if ENABLED(LIN_ADVANCE)
position_float[X_AXIS] = a;
position_float[Y_AXIS] = b;
//position_float[Z_AXIS] = c;
position_float[E_AXIS] = e;
#endif
} // buffer_segment() } // buffer_segment()
/** /**
@ -1586,7 +1610,7 @@ void Planner::_set_position_mm(const float &a, const float &b, const float &c, c
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
position_float[X_AXIS] = a; position_float[X_AXIS] = a;
position_float[Y_AXIS] = b; position_float[Y_AXIS] = b;
//position_float[Z_AXIS] = c; position_float[Z_AXIS] = c;
position_float[E_AXIS] = e; position_float[E_AXIS] = e;
#endif #endif
stepper.set_position(na, nb, nc, ne); stepper.set_position(na, nb, nc, ne);

19
Marlin/src/module/planner.h
View File

@ -103,7 +103,10 @@ typedef struct {
// Advance extrusion // Advance extrusion
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
bool use_advance_lead; bool use_advance_lead;
uint32_t abs_adv_steps_multiplier8; // Factorised by 2^8 to avoid float uint16_t advance_speed, // Timer value for extruder speed offset
max_adv_steps, // max. advance steps to get cruising speed pressure (not always nominal_speed!)
final_adv_steps; // advance steps due to exit speed
float e_D_ratio;
#endif #endif
// Fields used by the motion planner to manage acceleration // Fields used by the motion planner to manage acceleration
@ -195,9 +198,8 @@ class Planner {
#endif #endif
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
static float extruder_advance_k, advance_ed_ratio, static float extruder_advance_K,
position_float[XYZE], position_float[XYZE];
lin_dist_xy, lin_dist_e;
#endif #endif
#if ENABLED(SKEW_CORRECTION) #if ENABLED(SKEW_CORRECTION)
@ -418,7 +420,12 @@ class Planner {
* extruder - target extruder * extruder - target extruder
* millimeters - the length of the movement, if known * millimeters - the length of the movement, if known
*/ */
static void _buffer_steps(const int32_t (&target)[XYZE], float fr_mm_s, const uint8_t extruder, const float &millimeters = 0.0); static void _buffer_steps(const int32_t (&target)[XYZE]
#if ENABLED(LIN_ADVANCE)
, const float (&target_float)[XYZE]
#endif
, float fr_mm_s, const uint8_t extruder, const float &millimeters=0.0
);
/** /**
* Planner::buffer_segment * Planner::buffer_segment
@ -432,7 +439,7 @@ class Planner {
* extruder - target extruder * extruder - target extruder
* millimeters - the length of the movement, if known * millimeters - the length of the movement, if known
*/ */
static void buffer_segment(const float &a, const float &b, const float &c, const float &e, const float &fr_mm_s, const uint8_t extruder, const float &millimeters = 0.0); static void buffer_segment(const float &a, const float &b, const float &c, const float &e, const float &fr_mm_s, const uint8_t extruder, const float &millimeters=0.0);
static void _set_position_mm(const float &a, const float &b, const float &c, const float &e); static void _set_position_mm(const float &a, const float &b, const float &c, const float &e);

206
Marlin/src/module/stepper.cpp
View File

@ -111,31 +111,21 @@ volatile uint32_t Stepper::step_events_completed = 0; // The number of step even
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
uint32_t Stepper::LA_decelerate_after;
constexpr hal_timer_t ADV_NEVER = HAL_TIMER_TYPE_MAX; constexpr hal_timer_t ADV_NEVER = HAL_TIMER_TYPE_MAX;
hal_timer_t Stepper::nextMainISR = 0, hal_timer_t Stepper::nextMainISR = 0,
Stepper::nextAdvanceISR = ADV_NEVER, Stepper::nextAdvanceISR = ADV_NEVER,
Stepper::eISR_Rate = ADV_NEVER; Stepper::eISR_Rate = ADV_NEVER;
uint16_t Stepper::current_adv_steps = 0,
Stepper::final_adv_steps,
Stepper::max_adv_steps;
volatile int Stepper::e_steps[E_STEPPERS]; int8_t Stepper::e_steps = 0,
int Stepper::final_estep_rate, Stepper::LA_active_extruder; // Copy from current executed block. Needed because current_block is set to NULL "too early".
Stepper::current_estep_rate[E_STEPPERS],
Stepper::current_adv_steps[E_STEPPERS];
/** bool Stepper::use_advance_lead;
* See https://github.com/MarlinFirmware/Marlin/issues/5699#issuecomment-309264382
*
* This fix isn't perfect and may lose steps - but better than locking up completely
* in future the planner should slow down if advance stepping rate would be too high
*/
FORCE_INLINE hal_timer_t adv_rate(const int steps, const hal_timer_t timer, const uint8_t loops) {
if (steps) {
const hal_timer_t rate = (timer * loops) / abs(steps);
//return constrain(rate, 1, ADV_NEVER - 1)
return rate ? rate : 1;
}
return ADV_NEVER;
}
#endif // LIN_ADVANCE #endif // LIN_ADVANCE
@ -461,7 +451,7 @@ void Stepper::isr() {
#if DISABLED(MIXING_EXTRUDER) #if DISABLED(MIXING_EXTRUDER)
// Don't step E here for mixing extruder // Don't step E here for mixing extruder
count_position[E_AXIS] += count_direction[E_AXIS]; count_position[E_AXIS] += count_direction[E_AXIS];
motor_direction(E_AXIS) ? --e_steps[TOOL_E_INDEX] : ++e_steps[TOOL_E_INDEX]; motor_direction(E_AXIS) ? --e_steps : ++e_steps;
#endif #endif
} }
@ -640,25 +630,6 @@ void Stepper::isr() {
} // steps_loop } // steps_loop
#if ENABLED(LIN_ADVANCE)
if (current_block->use_advance_lead) {
const int delta_adv_steps = current_estep_rate[TOOL_E_INDEX] - current_adv_steps[TOOL_E_INDEX];
current_adv_steps[TOOL_E_INDEX] += delta_adv_steps;
#if ENABLED(MIXING_EXTRUDER)
// Mixing extruders apply advance lead proportionally
MIXING_STEPPERS_LOOP(j)
e_steps[j] += delta_adv_steps * current_block->step_event_count / current_block->mix_event_count[j];
#else
// For most extruders, advance the single E stepper
e_steps[TOOL_E_INDEX] += delta_adv_steps;
#endif
}
// If we have esteps to execute, fire the next advance_isr "now"
if (e_steps[TOOL_E_INDEX]) nextAdvanceISR = 0;
#endif // LIN_ADVANCE
// Calculate new timer value // Calculate new timer value
if (step_events_completed <= (uint32_t)current_block->accelerate_until) { if (step_events_completed <= (uint32_t)current_block->accelerate_until) {
@ -683,14 +654,15 @@ void Stepper::isr() {
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
if (current_block->use_advance_lead) { if (current_block->use_advance_lead) {
#if ENABLED(MIXING_EXTRUDER) if (step_events_completed == step_loops || (e_steps && eISR_Rate != current_block->advance_speed)) {
MIXING_STEPPERS_LOOP(j) nextAdvanceISR = 0; // Wake up eISR on first acceleration loop and fire ISR if final adv_rate is reached
current_estep_rate[j] = ((uint32_t)acc_step_rate * current_block->abs_adv_steps_multiplier8 * current_block->step_event_count / current_block->mix_event_count[j]) >> 17; eISR_Rate = current_block->advance_speed;
#else }
current_estep_rate[TOOL_E_INDEX] = ((uint32_t)acc_step_rate * current_block->abs_adv_steps_multiplier8) >> 17; }
#endif else {
eISR_Rate = ADV_NEVER;
if (e_steps) nextAdvanceISR = 0;
} }
eISR_Rate = adv_rate(e_steps[TOOL_E_INDEX], interval, step_loops);
#endif // LIN_ADVANCE #endif // LIN_ADVANCE
} }
@ -719,14 +691,15 @@ void Stepper::isr() {
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
if (current_block->use_advance_lead) { if (current_block->use_advance_lead) {
#if ENABLED(MIXING_EXTRUDER) if (step_events_completed <= (uint32_t)current_block->decelerate_after + step_loops || (e_steps && eISR_Rate != current_block->advance_speed)) {
MIXING_STEPPERS_LOOP(j) nextAdvanceISR = 0; // Wake up eISR on first deceleration loop
current_estep_rate[j] = ((uint32_t)step_rate * current_block->abs_adv_steps_multiplier8 * current_block->step_event_count / current_block->mix_event_count[j]) >> 17; eISR_Rate = current_block->advance_speed;
#else }
current_estep_rate[TOOL_E_INDEX] = ((uint32_t)step_rate * current_block->abs_adv_steps_multiplier8) >> 17; }
#endif else {
eISR_Rate = ADV_NEVER;
if (e_steps) nextAdvanceISR = 0;
} }
eISR_Rate = adv_rate(e_steps[TOOL_E_INDEX], interval, step_loops);
#endif // LIN_ADVANCE #endif // LIN_ADVANCE
} }
@ -734,10 +707,8 @@ void Stepper::isr() {
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
if (current_block->use_advance_lead) // If we have esteps to execute, fire the next advance_isr "now"
current_estep_rate[TOOL_E_INDEX] = final_estep_rate; if (e_steps && eISR_Rate != current_block->advance_speed) nextAdvanceISR = 0;
eISR_Rate = adv_rate(e_steps[TOOL_E_INDEX], OCR1A_nominal, step_loops_nominal);
#endif #endif
@ -781,55 +752,79 @@ void Stepper::isr() {
#if ENABLED(MK2_MULTIPLEXER) #if ENABLED(MK2_MULTIPLEXER)
// Even-numbered steppers are reversed // Even-numbered steppers are reversed
#define SET_E_STEP_DIR(INDEX) \ #define SET_E_STEP_DIR(INDEX) \
if (e_steps[INDEX]) E## INDEX ##_DIR_WRITE(e_steps[INDEX] < 0 ? !INVERT_E## INDEX ##_DIR ^ TEST(INDEX, 0) : INVERT_E## INDEX ##_DIR ^ TEST(INDEX, 0)) if (e_steps) E## INDEX ##_DIR_WRITE(e_steps < 0 ? !INVERT_E## INDEX ##_DIR ^ TEST(INDEX, 0) : INVERT_E## INDEX ##_DIR ^ TEST(INDEX, 0))
#else #else
#define SET_E_STEP_DIR(INDEX) \ #define SET_E_STEP_DIR(INDEX) \
if (e_steps[INDEX]) E## INDEX ##_DIR_WRITE(e_steps[INDEX] < 0 ? INVERT_E## INDEX ##_DIR : !INVERT_E## INDEX ##_DIR) if (e_steps) E## INDEX ##_DIR_WRITE(e_steps < 0 ? INVERT_E## INDEX ##_DIR : !INVERT_E## INDEX ##_DIR)
#endif #endif
#define START_E_PULSE(INDEX) \ #define START_E_PULSE(INDEX) \
if (e_steps[INDEX]) E## INDEX ##_STEP_WRITE(!INVERT_E_STEP_PIN) if (e_steps) E## INDEX ##_STEP_WRITE(!INVERT_E_STEP_PIN)
#define STOP_E_PULSE(INDEX) \ #define STOP_E_PULSE(INDEX) \
if (e_steps[INDEX]) { \ if (e_steps) { \
e_steps[INDEX] < 0 ? ++e_steps[INDEX] : --e_steps[INDEX]; \ e_steps < 0 ? ++e_steps : --e_steps; \
E## INDEX ##_STEP_WRITE(INVERT_E_STEP_PIN); \ E## INDEX ##_STEP_WRITE(INVERT_E_STEP_PIN); \
} }
SET_E_STEP_DIR(0); if (current_block->use_advance_lead) {
#if E_STEPPERS > 1 if (step_events_completed > LA_decelerate_after && current_adv_steps > final_adv_steps) {
SET_E_STEP_DIR(1); e_steps--;
#if E_STEPPERS > 2 current_adv_steps--;
SET_E_STEP_DIR(2); nextAdvanceISR = eISR_Rate;
#if E_STEPPERS > 3 }
SET_E_STEP_DIR(3); else if (step_events_completed < LA_decelerate_after && current_adv_steps < max_adv_steps) {
#if E_STEPPERS > 4 //step_events_completed <= (uint32_t)current_block->accelerate_until) {
SET_E_STEP_DIR(4); e_steps++;
#endif current_adv_steps++;
#endif nextAdvanceISR = eISR_Rate;
#endif }
#endif else {
nextAdvanceISR = ADV_NEVER;
eISR_Rate = ADV_NEVER;
}
}
else
nextAdvanceISR = ADV_NEVER;
// Step all E steppers that have steps switch(LA_active_extruder) {
for (uint8_t i = step_loops; i--;) { case 0: SET_E_STEP_DIR(0); break;
#if EXTRUDERS > 1
case 1: SET_E_STEP_DIR(1); break;
#if EXTRUDERS > 2
case 2: SET_E_STEP_DIR(2); break;
#if EXTRUDERS > 3
case 3: SET_E_STEP_DIR(3); break;
#if EXTRUDERS > 4
case 4: SET_E_STEP_DIR(4); break;
#endif // EXTRUDERS > 4
#endif // EXTRUDERS > 3
#endif // EXTRUDERS > 2
#endif // EXTRUDERS > 1
}
// Step E stepper if we have steps
while (e_steps) {
#if EXTRA_CYCLES_E > 20 #if EXTRA_CYCLES_E > 20
hal_timer_t pulse_start = HAL_timer_get_count(PULSE_TIMER_NUM); hal_timer_t pulse_start = HAL_timer_get_count(PULSE_TIMER_NUM);
#endif #endif
START_E_PULSE(0); switch(LA_active_extruder) {
#if E_STEPPERS > 1 case 0: START_E_PULSE(0); break;
START_E_PULSE(1); #if EXTRUDERS > 1
#if E_STEPPERS > 2 case 1: START_E_PULSE(1); break;
START_E_PULSE(2); #if EXTRUDERS > 2
#if E_STEPPERS > 3 case 2: START_E_PULSE(2); break;
START_E_PULSE(3); #if EXTRUDERS > 3
#if E_STEPPERS > 4 case 3: START_E_PULSE(3); break;
START_E_PULSE(4); #if EXTRUDERS > 4
#endif case 4: START_E_PULSE(4); break;
#endif #endif // EXTRUDERS > 4
#endif #endif // EXTRUDERS > 3
#endif #endif // EXTRUDERS > 2
#endif // EXTRUDERS > 1
}
// For minimum pulse time wait before stopping pulses // For minimum pulse time wait before stopping pulses
#if EXTRA_CYCLES_E > 20 #if EXTRA_CYCLES_E > 20
@ -839,19 +834,21 @@ void Stepper::isr() {
DELAY_NOPS(EXTRA_CYCLES_E); DELAY_NOPS(EXTRA_CYCLES_E);
#endif #endif
STOP_E_PULSE(0); switch(LA_active_extruder) {
#if E_STEPPERS > 1 case 0: STOP_E_PULSE(0); break;
STOP_E_PULSE(1); #if EXTRUDERS > 1
#if E_STEPPERS > 2 case 1: STOP_E_PULSE(1); break;
STOP_E_PULSE(2); #if EXTRUDERS > 2
#if E_STEPPERS > 3 case 2: STOP_E_PULSE(2); break;
STOP_E_PULSE(3); #if EXTRUDERS > 3
#if E_STEPPERS > 4 case 3: STOP_E_PULSE(3); break;
STOP_E_PULSE(4); #if EXTRUDERS > 4
#endif case 4: STOP_E_PULSE(4); break;
#endif #endif // EXTRUDERS > 4
#endif #endif // EXTRUDERS > 3
#endif #endif // EXTRUDERS > 2
#endif // EXTRUDERS > 1
}
// For minimum pulse time wait before looping // For minimum pulse time wait before looping
#if EXTRA_CYCLES_E > 20 #if EXTRA_CYCLES_E > 20
@ -1116,11 +1113,6 @@ void Stepper::init() {
ENABLE_STEPPER_DRIVER_INTERRUPT(); ENABLE_STEPPER_DRIVER_INTERRUPT();
#if ENABLED(LIN_ADVANCE)
for (uint8_t i = 0; i < COUNT(e_steps); i++) e_steps[i] = 0;
ZERO(current_adv_steps);
#endif
endstops.enable(true); // Start with endstops active. After homing they can be disabled endstops.enable(true); // Start with endstops active. After homing they can be disabled
sei(); sei();

56
Marlin/src/module/stepper.h
View File

@ -98,18 +98,20 @@ class Stepper {
static volatile uint32_t step_events_completed; // The number of step events executed in the current block static volatile uint32_t step_events_completed; // The number of step events executed in the current block
#if ENABLED(LIN_ADVANCE) #if ENABLED(LIN_ADVANCE)
static hal_timer_t nextMainISR, nextAdvanceISR, eISR_Rate;
#define _NEXT_ISR(T) nextMainISR = T
static volatile int e_steps[E_STEPPERS]; static uint32_t LA_decelerate_after; // Copy from current executed block. Needed because current_block is set to NULL "too early".
static int final_estep_rate; static hal_timer_t nextMainISR, nextAdvanceISR, eISR_Rate;
static int current_estep_rate[E_STEPPERS]; // Actual extruder speed [steps/s] static uint16_t current_adv_steps, final_adv_steps, max_adv_steps; // Copy from current executed block. Needed because current_block is set to NULL "too early".
static int current_adv_steps[E_STEPPERS]; // The amount of current added esteps due to advance. #define _NEXT_ISR(T) nextMainISR = T
// i.e., the current amount of pressure applied static int8_t e_steps;
// to the spring (=filament). static int8_t LA_active_extruder; // Copy from current executed block. Needed because current_block is set to NULL "too early".
#else static bool use_advance_lead;
#else // !LIN_ADVANCE
#define _NEXT_ISR(T) HAL_timer_set_compare(STEP_TIMER_NUM, T); #define _NEXT_ISR(T) HAL_timer_set_compare(STEP_TIMER_NUM, T);
#endif // LIN_ADVANCE
#endif // !LIN_ADVANCE
static long acceleration_time, deceleration_time; static long acceleration_time, deceleration_time;
static uint8_t step_loops, step_loops_nominal; static uint8_t step_loops, step_loops_nominal;
@ -239,13 +241,11 @@ class Stepper {
FORCE_INLINE static void set_x_lock(const bool state) { locked_x_motor = state; } FORCE_INLINE static void set_x_lock(const bool state) { locked_x_motor = state; }
FORCE_INLINE static void set_x2_lock(const bool state) { locked_x2_motor = state; } FORCE_INLINE static void set_x2_lock(const bool state) { locked_x2_motor = state; }
#endif #endif
#if ENABLED(Y_DUAL_ENDSTOPS) #if ENABLED(Y_DUAL_ENDSTOPS)
FORCE_INLINE static void set_homing_flag_y(const bool state) { performing_homing = state; } FORCE_INLINE static void set_homing_flag_y(const bool state) { performing_homing = state; }
FORCE_INLINE static void set_y_lock(const bool state) { locked_y_motor = state; } FORCE_INLINE static void set_y_lock(const bool state) { locked_y_motor = state; }
FORCE_INLINE static void set_y2_lock(const bool state) { locked_y2_motor = state; } FORCE_INLINE static void set_y2_lock(const bool state) { locked_y2_motor = state; }
#endif #endif
#if ENABLED(Z_DUAL_ENDSTOPS) #if ENABLED(Z_DUAL_ENDSTOPS)
FORCE_INLINE static void set_homing_flag_z(const bool state) { performing_homing = state; } FORCE_INLINE static void set_homing_flag_z(const bool state) { performing_homing = state; }
FORCE_INLINE static void set_z_lock(const bool state) { locked_z_motor = state; } FORCE_INLINE static void set_z_lock(const bool state) { locked_z_motor = state; }
@ -351,6 +351,22 @@ class Stepper {
static int8_t last_extruder = -1; static int8_t last_extruder = -1;
#if ENABLED(LIN_ADVANCE)
if (current_block->active_extruder != last_extruder) {
current_adv_steps = 0; // If the now active extruder wasn't in use during the last move, its pressure is most likely gone.
LA_active_extruder = current_block->active_extruder;
}
if (current_block->use_advance_lead) {
LA_decelerate_after = current_block->decelerate_after;
final_adv_steps = current_block->final_adv_steps;
max_adv_steps = current_block->max_adv_steps;
use_advance_lead = true;
}
else
use_advance_lead = false;
#endif
if (current_block->direction_bits != last_direction_bits || current_block->active_extruder != last_extruder) { if (current_block->direction_bits != last_direction_bits || current_block->active_extruder != last_extruder) {
last_direction_bits = current_block->direction_bits; last_direction_bits = current_block->direction_bits;
last_extruder = current_block->active_extruder; last_extruder = current_block->active_extruder;
@ -366,22 +382,6 @@ class Stepper {
acceleration_time = calc_timer_interval(acc_step_rate); acceleration_time = calc_timer_interval(acc_step_rate);
_NEXT_ISR(acceleration_time); _NEXT_ISR(acceleration_time);
#if ENABLED(LIN_ADVANCE)
if (current_block->use_advance_lead) {
current_estep_rate[current_block->active_extruder] = ((unsigned long)acc_step_rate * current_block->abs_adv_steps_multiplier8) >> 17;
final_estep_rate = (current_block->nominal_rate * current_block->abs_adv_steps_multiplier8) >> 17;
}
#endif
// SERIAL_ECHO_START();
// SERIAL_ECHOPGM("advance :");
// SERIAL_ECHO(current_block->advance/256.0);
// SERIAL_ECHOPGM("advance rate :");
// SERIAL_ECHO(current_block->advance_rate/256.0);
// SERIAL_ECHOPGM("initial advance :");
// SERIAL_ECHO(current_block->initial_advance/256.0);
// SERIAL_ECHOPGM("final advance :");
// SERIAL_ECHOLN(current_block->final_advance/256.0);
} }
#if HAS_DIGIPOTSS || HAS_MOTOR_CURRENT_PWM #if HAS_DIGIPOTSS || HAS_MOTOR_CURRENT_PWM