Added UltraLCD menu for backlash.

Marlin/src/lcd/language/language_en.h

@@ -1386,3 +1386,15 @@
 #ifndef MSG_SERVICE_IN
   #define MSG_SERVICE_IN                      _UxGT(" in:")
 #endif
+
+#ifndef MSG_BACKLASH
+  #define MSG_BACKLASH                        _UxGT("Backlash")
+#endif
+
+#ifndef MSG_BACKLASH_CORRECTION
+  #define MSG_BACKLASH_CORRECTION             _UxGT("Correction")
+#endif
+
+#ifndef MSG_BACKLASH_SMOOTHING
+  #define MSG_BACKLASH_SMOOTHING              _UxGT("Smoothing")
+#endif

Marlin/src/lcd/menu/menu_advanced.cpp

@@ -49,6 +49,7 @@
 #endif
 
 void menu_tmc();
+void menu_backlash();
 
 #if ENABLED(DAC_STEPPER_CURRENT)
 
@@ -647,6 +648,10 @@ void menu_advanced_settings() {
     }
   #endif // !SLIM_LCD_MENUS
 
+  #if ENABLED(BACKLASH_GCODE)
+    MENU_ITEM(submenu, MSG_BACKLASH, menu_backlash);
+  #endif
+
   #if ENABLED(DAC_STEPPER_CURRENT)
     MENU_ITEM(submenu, MSG_DRIVE_STRENGTH, menu_dac);
   #endif

Marlin/src/lcd/menu/menu_backlash.cpp

@@ -0,0 +1,58 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+//
+// Backlash Menu
+//
+
+#include "../../inc/MarlinConfigPre.h"
+
+#if HAS_LCD_MENU && ENABLED(BACKLASH_GCODE)
+
+#include "menu.h"
+
+extern float backlash_distance_mm[XYZ];
+extern uint8_t backlash_correction;
+
+#ifdef BACKLASH_SMOOTHING_MM
+  extern float backlash_smoothing_mm;
+#endif
+
+void menu_backlash() {
+  START_MENU();
+  MENU_BACK(MSG_MAIN);
+
+  MENU_MULTIPLIER_ITEM_EDIT(percent, MSG_BACKLASH_CORRECTION, &backlash_correction, all_off, all_on);
+
+  #define EDIT_BACKLASH_DISTANCE(N) MENU_MULTIPLIER_ITEM_EDIT(float43, MSG_##N, &backlash_distance_mm[_AXIS(N)], 0.0f, 9.9f);
+  EDIT_BACKLASH_DISTANCE(A);
+  EDIT_BACKLASH_DISTANCE(B);
+  EDIT_BACKLASH_DISTANCE(C);
+
+  #ifdef BACKLASH_SMOOTHING_MM
+    MENU_MULTIPLIER_ITEM_EDIT(float43, MSG_BACKLASH_SMOOTHING,  &backlash_smoothing_mm, 0.0f, 9.9f);
+  #endif
+
+  END_MENU();
+}
+
+#endif // HAS_LCD_MENU && BACKLASH_COMPENSATION