Z Homing Configuration

ryanteck

Hi,

I'm currently trying to convert my two printers from running Marlin to Repetier-Firmware for a couple of reasons. (Marlins auto bed levelling is a bit buggy where its not calculating it correct and I also use Repetier-server to control the printers so it makes sense to use Repetier Firmware).

I think I've configured it correct with the same values that I used for the Marlin firmware. However no matter what Z settings I change I seem to have the following:

Run G28, X & Y Home Correct

Z Then goes to home, the probe goes down senses the bed and triggers and the Z axis moves back up as I would expect. However it then just keeps moving down crushing the bed even though the probe is triggering again.

i suspect I have a value wrong but can't figure it out. I've put the configuration on paste.ubuntu.com over at http://paste.ubuntu.com/23936179/

Thanks 

Ryan

Repetier

Please also check values in eeprom.

You might want to set homing order to xy Temp. z with temp. 0. That way you can say where to probe for homing z. Also your z probe xy offset is 0 whcih is only the case if it is the extruder nozzle. If not make sure offset relative to extruder is set correctly.

Z_PROBE_HEIGHT 40 means when z probe triggers it must go 40mm down so nozzle touches bed. I guess this is too high and drives your nozzle into bed as described.

MartinH

do you have a Z max endstop fitted or are you using a z min probe as Z min endstop

atm you have 

#define Z_HOME_DIR 1  which is Z max homing

ryanteck

Thanks @Repteier, Changing the height from 40 to 0 fixed the issue.

@MartinH I'm using the z min probe as z min endstop but the configuration seems to be fine now I've done the change repetier recommended.