From 15268770f568735870d24e04fda15a96299d8073 Mon Sep 17 00:00:00 2001
From: Florian Heilmann <Florian.Heilmann@gmx.net>
Date: Thu, 4 May 2017 11:34:28 +0200
Subject: [PATCH] Fix broken fwretract recovery extruder feedrate
When both lowering and recovery are performed using the same "prepare_move_to_destination()" the extruder recovery feedrate ends up being ignored and, instead, is only capped by either the maximum e-speed or the time it takes to perform the z-lowering.
Performing the two moves separately from each other ensures a correct recovery feedrate.
---
Marlin/Marlin_main.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index d88afc323e..a5da264326 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -3062,6 +3062,8 @@ static void homeaxis(const AxisEnum axis) {
// Pretend current position is higher. Z will lower on the next move
current_position[Z_AXIS] += retract_zlift;
SYNC_PLAN_POSITION_KINEMATIC();
+ // Lower Z
+ prepare_move_to_destination();
}
feedrate_mm_s = retract_recover_feedrate_mm_s;
@@ -3069,7 +3071,7 @@ static void homeaxis(const AxisEnum axis) {
current_position[E_AXIS] -= move_e / volumetric_multiplier[active_extruder];
sync_plan_position_e();
- // Lower Z and recover E
+ // Recover E
prepare_move_to_destination();
}