fixup

Author: DerAndere1

Marlin/src/gcode/calibrate/G34_M422.cpp

@@ -68,6 +68,7 @@
  *     I<int>    Number of test iterations. If omitted, Z_STEPPER_ALIGN_ITERATIONS. (1-30)
  *     T<float>  Target Accuracy factor. If omitted, Z_STEPPER_ALIGN_ACC. (0.01-1.0)
  *     A<float>  Provide an Amplification value. If omitted, Z_STEPPER_ALIGN_AMP. (0.5-2.0)
+ *     E<bool>   Stow or raise the probe after probing. 0=raise (default), 1=stow.
  *     R         Recalculate points based on current probe offsets
  *
  * Example:

Marlin/src/gcode/probe/G38.cpp

@@ -57,7 +57,10 @@ inline bool G38_run_probe(const ProbePtRaise raise_after) {
   );
   msg.echoln();
   TERN_(VERBOSE_SINGLE_PROBE, ui.set_status(msg));
-  if ((!endstops.z_probe_enabled) || (DIFF_TERN(HAS_HOTEND_OFFSET, probe.offset, hotend_offset[active_extruder].z) >= 0)) {
+  cpnst xyz_pos_t diff = DIFF_TERN(HAS_HOTEND_OFFSET, probe.offset, hotend_offset[active_extruder].z);
+
+    // If the probe is stowed or above the nozzle, move the nozzle to the position of the probe
+  if ((!endstops.z_probe_enabled) || (probe.offset.z >= TERN0(HAS_HOTEND_OFFSET, hotend_offset[active_extruder].z))) {
     destination = measured;
     do_blocking_move_to(destination);
     planner.synchronize();
@@ -84,7 +87,7 @@ inline bool G38_run_probe(const ProbePtRaise raise_after) {
  *   X   Probe X position (default current X)
  *   Y   Probe Y position (default current Y)
  *   Z   Probe Z position (default current Z)
- *   S   Engage the probe for each probe (default 0)
+ *   S   Stow the probe after probing (default: 0)
  */
 void GcodeSuite::G38(const int8_t subcode) {