Arc segment radius scaling (#16551)

2020-01-21 00:53:26 -08:00
parent 79810b7fcb
commit b7f86bffd5
2 changed files with 11 additions and 7 deletions
--- a/Marlin/src/gcode/motion/G2_G3.cpp
+++ b/Marlin/src/gcode/motion/G2_G3.cpp
@@ -105,7 +105,10 @@ void plan_arc(

  const feedRate_t scaled_fr_mm_s = MMS_SCALED(feedrate_mm_s);

-  #ifdef ARC_SEGMENTS_PER_SEC
+  #ifdef ARC_SEGMENTS_PER_R
+    float seg_length = MM_PER_ARC_SEGMENT * radius;
+    LIMIT(seg_length, MM_PER_ARC_SEGMENT, ARC_SEGMENTS_PER_R);
+  #elif ARC_SEGMENTS_PER_SEC
    float seg_length = scaled_fr_mm_s * RECIPROCAL(ARC_SEGMENTS_PER_SEC);
    NOLESS(seg_length, MM_PER_ARC_SEGMENT);
  #else