Homing puts Z through max value

Anteino

Hi all,

my repetier version can be found here: https://github.com/Anteino/Repetier-Firmware/tree/500XL-Minimal<br/><br/>I implemented a wizard to calibrate the extruder offsets because it's not possible to do this physically (I use a hall sensor that can not easily be adjusted). I think this might be part of the reason that's causing the following problem.

I have my printer home at it's max Z position. All is fine and dandy until I enable FEATURE_AUTOLEVEL. When I set this to true, the printer goes through its maximum position. The max Z length is 500 mm. The offsets of both nozzles are about 2 +- 0.05 mm. With FEATURE_AUTOLEVEL set to false, the printer moves to Z = 498 after homing for obvious reasons. But when I enable FEATURE_AUTOLEVEL again, the printer moves to 502.71 after homing causing the printer to move through its boundaries and hurting itself. I figured out that this is not caused by Printer::homeZAxis(), but I can't seem to figure out what's causing this error.

Please help :/ If you need the contents of my EEPROM I can post them here.

Repetier

Check bed coating in eeprom. That value will make z move after homing. Also with z homing you should also have

#define ENDSTOP_Z_BACK_ON_HOME 2to allow some back move to adjust to tool offset or different bed coatings or rotation measured. In fact it could be the rotation if the rotation matrix is not 0 it might cause an additional offset. So also reset rotation matrix for first tests.