Best posts made by Impalanator

@Phaedrux thanks for the reply. When I remove the screen from the case, the issue disappears. My theory is, when it’s in the case, the board twists and causes the digitizer to come off the screen. It was definitely the digitizer as I can tell now that it’s out of the case that the digitizer floats on the screen and is only attached at the edges. I ordered it from Printed Solid on 9/13/2022. I will drill out the mounting holes on the case to prevent it from twisting the board.

Cancel this one, I was on Buster and not Bookworm. I followed this:
https://docs.duet3d.com/en/How_to_guides/SBC_Buster_to_Bookworm

And now it is working fine on 3.5.2.

Thanks,
Ed

@jay_s_uk Thank you! I tried B4092 but it is still off by exactly 20 degrees Celsius after re-tuning. I think I just need to contact the manufacturer of the bed and ask them which thermistor they used.

@dougal1957 That was exactly the issue. I looked at the top of the lead screw and it has a 4 start. I changed Z steps per mm to 800 and now it is perfect.

Ignore this one please. I can't delete it. I rephrased the posted a better question here:
https://forum.duet3d.com/post/230220