Z Homing failing (nozzle touches bed around 2mm)

[gsuresh2u]

Did you test with a precompiled firmware?

Yes, and the problem still exists.

Bug Description

Hi, i compiled firmware, configured with your configurator for SKR MINI E3 V3 board for Ender2 V2 i upgraded to Ender Extender, and added Auto shut down relay, there is no opion in precompiled firmware to enable or disable auto shutdown so, i need to compile my firmware today i flashed with new firmware which is downloaded today and compiled when i press Auto Home or Z home, CR Touch touching bed, then not stopping nozzle is crashing into bed around 2 mm attached my config files, please check

Bug Timeline

No response

Expected behavior

Need to home Z correcttly

Actual behavior

when Z Homing, nozzle is crashing into bed around 2 mm

Steps to Reproduce

No response

Version of Professional Firmware

2.1.3

Printer model

Ender 3V2

Electronics

SKR MINI E3 V3

Add-ons

Auto Shudown

Bed Leveling

UBL Bilinear mesh

Your Slicer

Cura

Host Software

None

Additional information & file uploads

config.zip

[BradGillies]

Similar issue. After print finishes or halted and Auto home is selected, the z axis will over travel and not stop. Power must be removed from printer. The probe does not activate when autohome is selected in the above conditions. Also the Z stop does not stop the over travel. I put the Z stop switch back to protect from the over travel to no avail. This is readily repeatable.

[gsuresh2u]

But my problem is little different Z stops after nozzle touching bed around 2mm Before upgrading firmware, my Z offset is - 0.82 Now it's positive value, 2.6mm So, there must be firmware problem I have no backup for my old firmware to update again

[gsuresh2u]

@mriscoc Please check my problem

[mriscoc]

Could be related to CR Touch wiring, disable the HS mode. Thank you for your contribution!

[gsuresh2u]

@mriscoc Hi, finally i found the problem, its not CR touch wiring when i use source code directly from https://github.com/mriscoc/Ender3V2S1, and configured my own settrings then Nozzle touching bed problem exists But when i use source code from https://github.com/mriscoc/Ender3V2S1/releases/tag/20221222, the problem is gone Z is homing correctly, so there must be some glitch in source code https://github.com/mriscoc/Ender3V2S1 i hope you can correct it next release i am 100% sure there is some glitch, i checked 3 times with flashing firmware 3 times hope anyone else have same problem, pleae use source from https://github.com/mriscoc/Ender3V2S1/releases/tag/20221222

[github-actions[bot]]

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