From 377108619bf7cab77741c004f8c0975626c87db7 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sun, 11 Feb 2018 03:34:25 -0600
Subject: [PATCH] Fix plan_arc clockwise (G2)

Fix #9482
---
 Marlin/src/gcode/motion/G2_G3.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/gcode/motion/G2_G3.cpp b/Marlin/src/gcode/motion/G2_G3.cpp
index 490a063ff2..46dbd8b4f0 100644
--- a/Marlin/src/gcode/motion/G2_G3.cpp
+++ b/Marlin/src/gcode/motion/G2_G3.cpp
@@ -87,7 +87,7 @@ void plan_arc(
     angular_travel = RADIANS(360);
 
   const float flat_mm = radius * angular_travel,
-              mm_of_travel = linear_travel ? HYPOT(flat_mm, linear_travel) : flat_mm;
+              mm_of_travel = linear_travel ? HYPOT(flat_mm, linear_travel) : FABS(flat_mm);
   if (mm_of_travel < 0.001) return;
 
   uint16_t segments = FLOOR(mm_of_travel / (MM_PER_ARC_SEGMENT));