I printed a model in PETG shortly after a PLA print, which was fine, and it damaged the plate as shown. What’s odd is I’ve printed this same model with this same filament on this printer and it was fine. The temps in the gcode are the same between those prints.
Is this a Z-offset issue? Would PLA and PETG require different Z-offsets on the same printer?
Edit for more details: Creality Ender 3 V3 SE, stock plate.
@user_6282638282 I’ve had similar problems. It may be the coating has been removed from the bed. It happens when filament sticks too much, PETG is pretty bad for it. I tend to leave my bed to cool so the piece pops off itself. That doesnt always work. Following other advice to reduce adhesion like bed temp, offset etc may work.
I didn’t even time it to remove right after completion, that’s just when I came back to the shop after dinner. But it did feel warm, so maybe it had just finished. Judging by the print, though, it was pretty thoroughly embedded… I’m not sure any amount of cooling would have helped, but now I’ll never know!
@user_6282638282 yeah, when its stuck hard sometimes it just wont come off. Ive killed a couple of beds like that. Basically do the opposite of getting better adhesion! Thinner first layer, lower temps, larger nozzle offset etc