Center ABL grid on bed with H parameter. (#12610)

6 years ago · 3bb8b3529a
parent 6cf8d40f41
commit 3bb8b3529a
1 changed files with 4 additions and 4 deletions
--- a/Marlin/src/gcode/bedlevel/abl/G29.cpp
+++ b/Marlin/src/gcode/bedlevel/abl/G29.cpp
@ -385,9 +385,9 @@ G29_TYPE GcodeSuite::G29() {

      if (parser.seen('H')) {
        const int16_t size = (int16_t)parser.value_linear_units();
-        left_probe_bed_position  = MAX((MIN_PROBE_X + MAX_PROBE_X - size) / 2, MIN_PROBE_X);
+        left_probe_bed_position  = MAX(X_CENTER - size / 2, MIN_PROBE_X);
        right_probe_bed_position = MIN(left_probe_bed_position + size, MAX_PROBE_X);
-        front_probe_bed_position = MAX((MIN_PROBE_Y + MAX_PROBE_Y - size) / 2, MIN_PROBE_Y);
+        front_probe_bed_position = MAX(Y_CENTER - size / 2, MIN_PROBE_Y);
        back_probe_bed_position  = MIN(front_probe_bed_position + size, MAX_PROBE_Y);
      }
      else {