Z-Offset Problems
I am having issues with prints failing because the z-offset is apparently too low; often the very first line that gets printed is immediately dragged by the print head. I was able to "fix" the problem for one test print by using the manual z-tuning feature, but as far as I can tell there is no way to make those changes persist from print to print. Ideally I'd also like a diagnosis, not just a fix. For what it's worth this issue started after a number of prints failed much higher up. A couple of these were pretty spectacular and knocked the print head around a bit.
Any suggestions for troubleshooting or at least for setting a z-offest adjustment permanently? This is a vanilla Core One with the extruder modified for the MMU3 and a regular (not HF) nozzle.
RE: Z-Offset Problems
Hi is the nozzle tight? It gets pushed in during bed probing but pushed out once filament starts being extruded.
Tightening the two screws at room temperature doesn't automatically mean it's still tight once heated up...
RE: Z-Offset Problems
You're not alone. See https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/4254
170 comments or so so far.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/
RE: Z-Offset Problems
Thanks mnentwig and foxrun3d. After further investigation it seems like my issue was actually bed adhesion. Switching from from the powder coated satin plate to the smooth plate fixed the problem.