Issues with print height and z-offset

General Discussion
1

Basic Information:

Printer Model: Custom (CoreXY)
MCU / Printerboard: Duet WiFi
Host / SBC Raspberry Pi running Mainsail
klippy.log

Describe your issue:

I’m running into an issue around Z offset and printing, this seems to be happening recently, I don’t remember this happening in the past.

I’m having an issue where the first layer is printing too high from the bed. It seems adjusting the offset doesn’t really help? Every time I run probe_calibrate, I have to increase my distances. The config was originally set to 1.030 Z Offset, Now I’m up to 1.542. The offset keeps going up and up, but there should be no change. This offset up date needs to be run and the distance needs to be increased every print or two…

It’s becoming INFURIATING since nothing’s sticking to the bed and I can’t get a good first layer squish.

Any help would be greatly appreciated.
klippy.log (2.0 MB)

2

Can I suggest that you join the Voron Discord and go to the voice/video channels and ask for live help there, trying to work out what you have wrong is possible here but will take for ever where as 30 mins in the voice channel will get it done.

3

Did the OP mention that a Voron is used?

@Credo

Did you store the new offset with Z_OFFSET_APPLY_PROBE?

4

No, but my friends and I help anyone with printer issues.

5

When the probe finishes, it provides an offset distance which I update in my config:

[probe]
pin: ^PrintHead: PB9
x_offset: 25.35
y_offset: 22.405
z_offset: 1.450

Does Z_OFFSET_APPLY_PROBE do something different?

6

It puts it where it belongs: Into the SAVE-CONFIG section and takes the existing value into the calculation.

7

I’ll give that a shot, thank you.

I’m curious though, if this is a symptom of something else. I’ve run through the probe_calibrate when the hotend and plate are at temperature, but the fact that it always has to be adjusted leads me to believe there might be an issue with something else?

8

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.