🚸 Fix BLTouch HSMode deploy (MarlinFirmware#26311)

classicrocker883 · Dec 26, 2023 · ff420c5 · ff420c5
1 parent 2bdb776
commit ff420c5
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/Marlin/src/module/probe.cpp b/Marlin/src/module/probe.cpp
@@ -596,11 +596,15 @@ bool Probe::probe_down_to_z(const_float_t z, const_feedRate_t fr_mm_s) {
     thermalManager.wait_for_hotend_heating(active_extruder);
   #endif
 
-  // Ensure the BLTouch is deployed. Does nothing if already deployed.
-  if (TERN0(BLTOUCH, bltouch.deploy())) return true;
+  #if ENABLED(BLTOUCH)
+    // Ensure the BLTouch is deployed. (Does nothing if already deployed.)
+    // Don't deploy with high_speed_mode enabled. The probe already re-deploys itself.
+    if (TERN(MEASURE_BACKLASH_WHEN_PROBING, true, !bltouch.high_speed_mode) && bltouch.deploy())
+      return true;
+  #endif
 
   #if HAS_Z_SERVO_PROBE && (ENABLED(Z_SERVO_INTERMEDIATE_STOW) || defined(Z_SERVO_MEASURE_ANGLE))
-    probe_specific_action(true);  //  Always re-deploy in this case
+    probe_specific_action(true);  // Always re-deploy in this case
   #endif
 
   // Disable stealthChop if used. Enable diag1 pin on driver.