From de6a725b04f9005fa53fab240edb3d2c576a6c97 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sun, 10 May 2020 02:46:37 -0500
Subject: [PATCH] Fix G2/G3 segment size
Fixes #17348
---
Marlin/src/gcode/motion/G2_G3.cpp | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Marlin/src/gcode/motion/G2_G3.cpp b/Marlin/src/gcode/motion/G2_G3.cpp
index 1e8365d6d2..0352947cca 100644
--- a/Marlin/src/gcode/motion/G2_G3.cpp
+++ b/Marlin/src/gcode/motion/G2_G3.cpp
@@ -112,8 +112,13 @@ void plan_arc(
#else
constexpr float seg_length = MM_PER_ARC_SEGMENT;
#endif
+
+ // Length divided by segment size gives segment count
uint16_t segments = FLOOR(mm_of_travel / seg_length);
- NOLESS(segments, min_segments);
+ if (segments < min_segments) {
+ segments = min_segments; // No fewer than the minimum
+ seg_length = mm_of_travel / segments; // A new segment length
+ }
/**
* Vector rotation by transformation matrix: r is the original vector, r_T is the rotated vector,
--
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