From 9b9350e0104835be54ccda89f0bae9e0659281d3 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Fri, 2 Feb 2018 02:32:11 -0600
Subject: [PATCH] Fix jerky Z motion between probes
Suggested by #9375
---
Marlin/src/module/probe.cpp | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/Marlin/src/module/probe.cpp b/Marlin/src/module/probe.cpp
index 8b42b1c99f..3bfd0cb902 100644
--- a/Marlin/src/module/probe.cpp
+++ b/Marlin/src/module/probe.cpp
@@ -538,13 +538,12 @@ static float run_z_probe() {
#else
- // If the nozzle is above the travel height then
+ // If the nozzle is well over the travel height then
// move down quickly before doing the slow probe
- float z = Z_CLEARANCE_DEPLOY_PROBE;
+ float z = Z_CLEARANCE_DEPLOY_PROBE + 5.0;
if (zprobe_zoffset < 0) z -= zprobe_zoffset;
- if (z < current_position[Z_AXIS]) {
-
+ if (current_position[Z_AXIS] > z) {
// If we don't make it to the z position (i.e. the probe triggered), move up to make clearance for the probe
if (!do_probe_move(z, Z_PROBE_SPEED_FAST))
do_blocking_move_to_z(current_position[Z_AXIS] + Z_CLEARANCE_BETWEEN_PROBES, MMM_TO_MMS(Z_PROBE_SPEED_FAST));