From a0dc66f7bfab6815c4a64a1fbf02dd82d1d75d11 Mon Sep 17 00:00:00 2001
From: Bernhard <bkubicek@x201.(none)>
Date: Sat, 26 Nov 2011 12:04:06 +0100
Subject: [PATCH] Home retract distance configureable per axis.
---
Marlin/Configuration.h | 5 +++++
Marlin/Marlin.pde | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 17a8854638..7bd94f6403 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -207,6 +207,11 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
#define NUM_AXIS 4 // The axis order in all axis related arrays is X, Y, Z, E
#define HOMING_FEEDRATE {50*60, 50*60, 4*60, 0} // set the homing speeds (mm/min)
+//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
+#define X_HOME_RETRACT_MM 5
+#define Y_HOME_RETRACT_MM 5
+#define Z_HOME_RETRACT_MM 1
+
#define AXIS_RELATIVE_MODES {false, false, false, false}
#define MAX_STEP_FREQUENCY 40000 // Max step frequency for Ultimaker (5000 pps / half step)
diff --git a/Marlin/Marlin.pde b/Marlin/Marlin.pde
index d94f810c1d..d765d222b6 100644
--- a/Marlin/Marlin.pde
+++ b/Marlin/Marlin.pde
@@ -469,10 +469,10 @@ inline bool code_seen(char code)
\
current_position[LETTER##_AXIS] = 0;\
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);\
- destination[LETTER##_AXIS] = -5 * LETTER##_HOME_DIR;\
+ destination[LETTER##_AXIS] = -LETTER##_HOME_RETRACT_MM * LETTER##_HOME_DIR;\
prepare_move(); \
\
- destination[LETTER##_AXIS] = 10 * LETTER##_HOME_DIR;\
+ destination[LETTER##_AXIS] = 2*LETTER##_HOME_RETRACT_MM * LETTER##_HOME_DIR;\
feedrate = homing_feedrate[LETTER##_AXIS]/2 ; \
prepare_move(); \
\
--
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