Raise Z befor moving to Z_SAFE_HOMING

[Gummibaer]

Please implement a Z raise for G28 Command
Befor Homing Z -> raise Z -> then moving to Z Safe

[thinkyhead]

@Gummibaer Currently it's enabled only for systems using auto-bed leveling, but I agree it should be available for all setups.

[TechMasterJoe]

testing that very thing got bored so printed a new control knob and did it at 100mm/s with silc3r
I use Firmware Retraction, Volumetric and advance K =.008
lawl

[Gummibaer]

@thinkyhead i have auto-bed leveling.
I need to send a G28 before the G29. by G28 crashed the hot end with a Screw.
I use corexy
my solution in slic3r config
G1 Z10 ; raise Z 10mm
G28; homing all axes
G29; auto-bed leveling

[thinkyhead]

Have you tested the latest code? There was a fix in G28 related to Z raise before homing within the last 20 hours or so. G29 (and maybe G29 E) bed leveling are still wrong, so for the moment auto bed leveling needs to be compensated with a z homing offset, or go back to an earlier Marlin before Z raise was moved into probe_pt()… about 2 weeks ago.

[Gummibaer]

I have last from 04.04.2015 17:32.
this is a feuture request. Raise Z before homing

[thinkyhead]

What is your current setting for Z_RAISE_BEFORE_HOMING?

[Gummibaer]

#define Z_RAISE_BEFORE_HOMING 10
but it dosent work

Homingdirection

#define X_HOME_DIR -1
#define Y_HOME_DIR 1
#define Z_HOME_DIR -1

[thinkyhead]

@Gummibaer Using a cartesian printer or a Delta? I see, some of your home directions are -1, must be a cartesian!

[Gummibaer]

Yes its a cartesian. (the printer name is SparkCube)
Y is home direction to MAX

[jbrazio]

I believe this feature request was implemented with #3107.

[thinkyhead]

MIN_Z_HEIGHT_FOR_HOMING works for me!

[github-actions]

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