Y axis layer shift on bedslinger after pause

[kucky1207]

Basic Information:

Printer Model: Creality Ender 3 V3 KE
MCU / Printerboard: gd32f303xe
Host / SBC Im sorry, what?
klippy.log
klippy.log (219.6 KB)

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there

Describe your issue:

…Hi, im getting layer shift of about 1-2mm on Y axis (bedslinger) every time i pause print.
I have done a linear rail mod on the printer, but the bed and all its other components are the same (bed frame, homing switch ect)
got no idea where to start or how to start fixing this.

[Sineos]

Usually, layer shifts have two main reasons: configuration and/or hardware.

For configuration, check for misconfigured TMC drivers, particularly:

• Too low run_current. It needs to match the motor specification.
• Misconfigured sense_resistor. It needs to match the used TMC modules.
• Some “arcane” TMC tuning.

On the hardware side:

• Binding or hard-moving axes.
• Defective or poor-quality stepper drivers.

[kucky1207]

No it only shifts once when i pause. otherwise it prints flawlessly.
Wouldnt all the problems you listed result in continuous layer shifts thruought the print regardless of pausing the print or not?

[why_me1]

first of you dont run mainline klipper version, “Git version: ‘09faed31-dirty’” is not a mainline klipper version. Probably some Creality firmware, which has changes we aren’t aware of and therefore cant support it here.

However, if your error only occurs when you pause, then check your pause macro, is the parking position when you pause reachable without crashing into axis limits? If you cant reach your desired parking position and crash into axis limits, your layer will shift after you resume.

[kucky1207]

Thank you, it was a damn screw interfering with the rail mod at max Y.
youre the best