BLTouch Fixes & EStep Updates

Added MarlinFirmware#25656

Board_Configs/TH3D_EZBoardLite/Firmware/Marlin/Configuration.h

@@ -207,12 +207,19 @@
 // EXTRUDER SETTINGS -------------------------------
 // Use to set custom esteps and/or reverse your E Motor direction if you are installing an extruder that needs the direction reversed.
 // If you reversed the wiring on your E motor already (like the Bondtech Guide says to do) then you do not need to reverse it in the firmware here.
-
+//
+// Example EStep Values For Common Extuders: 
+// TH3D Aluminum Extruder ---  95 ESteps
+// LGX/LGX Lite/NG Extruder - 400 ESteps
+// TH3D Tough Extruder V2 --- 407 ESteps
+// TH3D Tough Extruder V1 --- 410 ESteps
+// Bondtech BMG Extruder ---- 415 ESteps
+// Creality Sprite Extruder - 425 ESteps
+// LDO Orbiter/Sherpa Mini -- 690 ESteps
+//
 // If you want to change the Esteps for your printer you can uncomment the below line and set CUSTOM_ESTEPS_VALUE to what you want - USE WHOLE NUMBERS ONLY
 // This option sets the esteps from the CUSTOM_ESTEPS_VALUE line below.
 // If you need to reverse the e motor direction also enabled the REVERSE_E_MOTOR_DIRECTION option.
-// Example EStep Values: TH3D Aluminum Extruder - 95 ESteps, TH3D Tough Extruder - 410 ESteps, BMG Extruder - 415 ESteps
-// When installing a Tough Extruder or E3D Titan or Bondtech that is Geared you likely need to enable the REVERSE_E_MOTOR_DIRECTION option
 //#define CUSTOM_ESTEPS
 #define CUSTOM_ESTEPS_VALUE 410
 //#define REVERSE_E_MOTOR_DIRECTION

Board_Configs/TH3D_EZBoardV2/Firmware/Marlin/Configuration.h

@@ -235,12 +235,19 @@
 // EXTRUDER SETTINGS -------------------------------
 // Use to set custom esteps and/or reverse your E Motor direction if you are installing an extruder that needs the direction reversed.
 // If you reversed the wiring on your E motor already (like the Bondtech Guide says to do) then you do not need to reverse it in the firmware here.
-
+//
+// Example EStep Values For Common Extuders: 
+// TH3D Aluminum Extruder ---  95 ESteps
+// LGX/LGX Lite/NG Extruder - 400 ESteps
+// TH3D Tough Extruder V2 --- 407 ESteps
+// TH3D Tough Extruder V1 --- 410 ESteps
+// Bondtech BMG Extruder ---- 415 ESteps
+// Creality Sprite Extruder - 425 ESteps
+// LDO Orbiter/Sherpa Mini -- 690 ESteps
+//
 // If you want to change the Esteps for your printer you can uncomment the below line and set CUSTOM_ESTEPS_VALUE to what you want - USE WHOLE NUMBERS ONLY
 // This option sets the esteps from the CUSTOM_ESTEPS_VALUE line below.
 // If you need to reverse the e motor direction also enabled the REVERSE_E_MOTOR_DIRECTION option.
-// Example EStep Values: TH3D Aluminum Extruder - 95 ESteps, TH3D Tough Extruder - 410 ESteps, BMG Extruder - 415 ESteps
-// When installing a Tough Extruder or E3D Titan or Bondtech that is Geared you likely need to enable the REVERSE_E_MOTOR_DIRECTION option
 //#define CUSTOM_ESTEPS
 #define CUSTOM_ESTEPS_VALUE 410
 //#define REVERSE_E_MOTOR_DIRECTION

Firmware/Marlin/Configuration_backend.h

@@ -260,7 +260,9 @@
   #define Z_PROBE_OFFSET_RANGE_MAX     1
 
   #define Z_MIN_PROBE_REPEATABILITY_TEST
-  #define Z_AFTER_HOMING               5
+  #if NONE(BLTOUCH)
+    #define Z_AFTER_HOMING             5
+  #endif
   #define Z_PROBE_LOW_POINT           -10
 
   #if NONE(BLTOUCH)
@@ -561,7 +563,7 @@
 #endif
 
 #if ENABLED(BLTOUCH)
-  #define Z_CLEARANCE_DEPLOY_PROBE   8
+  #define Z_CLEARANCE_DEPLOY_PROBE   5
   #define Z_CLEARANCE_BETWEEN_PROBES 5
   #define Z_CLEARANCE_MULTI_PROBE    5
   #define Z_PROBE_FEEDRATE_SLOW (Z_PROBE_FEEDRATE_FAST / 2)

Firmware/Marlin/src/feature/bltouch.cpp

@@ -42,9 +42,14 @@ bool BLTouch::od_5v_mode;         // Initialized by settings.load, 0 = Open Drai
 #include "../core/debug_out.h"
 
 bool BLTouch::command(const BLTCommand cmd, const millis_t &ms) {
-  if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("BLTouch Command :", cmd);
-  servo[Z_PROBE_SERVO_NR].move(cmd);
-  safe_delay(_MAX(ms, (uint32_t)BLTOUCH_DELAY)); // BLTOUCH_DELAY is also the *minimum* delay
+  const BLTCommand current = servo[Z_PROBE_SERVO_NR].read();
+  if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("BLTouch from ", current, " to ", cmd);
+  // If the new command is the same, skip it (and the delay).
+  // The previous write should've already delayed to detect the alarm.
+  if (cmd != current) {
+    servo[Z_PROBE_SERVO_NR].move(cmd);
+    safe_delay(_MAX(ms, (uint32_t)BLTOUCH_DELAY)); // BLTOUCH_DELAY is also the *minimum* delay
+  }
   return triggered();
 }