PETG First Layer issues (burn marks)
When printing PETG I get black marks in the top left corner. It appears that it is always the top left corner.
I tried printing a full print sheet of 1 layer PLA to test. And that worked out fine.
I found out that PETG needs a slightly higher Z offset than pretty much every other material. I tried a z offset of 0.1mm in prusa slicer (which was not enough saw the same behavior). Also this is only printer / nozzle setup. I did not find a way to set this in the filament profile. I am not sure if this is the correct way to solve this issue. Especially, because it only seems to be happening in the top left corner and only with PETG. Maybe if I raise the offset enough to fix this it will be too high everywhere else. Could this be an assembly issue?