Issue switching build plates

[ksummers92]

I have set up autoZ against a smooth Wham Bam PEX sheet on my Enderwire and it works perfectly. However, when I switch to a textured sheet, the offset is always around -0.38 which results in a first layer as shown in the image below.

My understanding is that the autoZ should accommodate for build sheet changes and there is even mention of potentially manually adjusting closer for textured sheets. However, my experience thus far has been that I need to adjust the offset up by as much as 0.4.

Am I missing something?

[TitusLabs]

This may depend on your switch and the structure of your textured plate. This may depend on whether the switch is only triggered by the mountains, or can also get into the valleys before it triggers. If you need to correct it upwards, then do it with the: SET_GCODE_OFFSET Z_ADJUST=[some value] MOVE=1

[ksummers92]

Yeah I understand the workaround. I’m just trying to understand how it can be so far off. If I’m having to manually adjust the offset for everything then this auto Z calibration is not providing much benefit…

[TitusLabs]

No, if the calibration is not consistent, then there is another problem. Check your mechanics, test your klicky and check for a wrong or wrong configured mesh...

[Gray-Stone]

I actually have similar issue. but worse. For my textured bed, 1 out of say 20 prints will have this super over squash issue. The other times the print needs a tiny extra squash.