From f22b677906a4c410de39060136f344ac2ba0fe06 Mon Sep 17 00:00:00 2001
From: Jason Smith <jason.inet@gmail.com>
Date: Sun, 29 Nov 2020 13:00:08 -0800
Subject: [PATCH] Leveling Fade Height default setting (#20316)

---
 Marlin/Configuration.h             | 3 +++
 Marlin/src/inc/Conditionals_post.h | 4 ++++
 Marlin/src/module/settings.cpp     | 4 ++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 0e529b346..ebc3311d9 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -1291,6 +1291,9 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+  #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
+    #define DEFAULT_LEVELING_FADE_HEIGHT 10.0 // (mm) Default fade height.
+  #endif
 
   // For Cartesian machines, instead of dividing moves on mesh boundaries,
   // split up moves into short segments like a Delta. This follows the
diff --git a/Marlin/src/inc/Conditionals_post.h b/Marlin/src/inc/Conditionals_post.h
index 35fd92e10..dfecd5774 100644
--- a/Marlin/src/inc/Conditionals_post.h
+++ b/Marlin/src/inc/Conditionals_post.h
@@ -2448,6 +2448,10 @@
   #endif
 #endif
 
+#ifndef DEFAULT_LEVELING_FADE_HEIGHT
+  #define DEFAULT_LEVELING_FADE_HEIGHT 0.0
+#endif
+
 #if ENABLED(SEGMENT_LEVELED_MOVES) && !defined(LEVELED_SEGMENT_LENGTH)
   #define LEVELED_SEGMENT_LENGTH 5
 #endif
diff --git a/Marlin/src/module/settings.cpp b/Marlin/src/module/settings.cpp
index c49c643b6..c6eee271a 100644
--- a/Marlin/src/module/settings.cpp
+++ b/Marlin/src/module/settings.cpp
@@ -696,7 +696,7 @@ void MarlinSettings::postprocess() {
     // Global Leveling
     //
     {
-      const float zfh = TERN(ENABLE_LEVELING_FADE_HEIGHT, planner.z_fade_height, 10.0f);
+      const float zfh = TERN(ENABLE_LEVELING_FADE_HEIGHT, planner.z_fade_height, (DEFAULT_LEVELING_FADE_HEIGHT));
       EEPROM_WRITE(zfh);
     }
 
@@ -2588,7 +2588,7 @@ void MarlinSettings::reset() {
   //
   // Global Leveling
   //
-  TERN_(ENABLE_LEVELING_FADE_HEIGHT, new_z_fade_height = 0.0);
+  TERN_(ENABLE_LEVELING_FADE_HEIGHT, new_z_fade_height = (DEFAULT_LEVELING_FADE_HEIGHT));
   TERN_(HAS_LEVELING, reset_bed_level());
 
   #if HAS_BED_PROBE