I just replaced my PEI sheet a few months ago since it was bubbling. Yesterday the auto-level feature must have messed up because the nozzle was etching into the PEI sheet. I clean the nozzle regularly, but I guess some plastic must have still been on the tip.
So I aborted the print and homed everything, but the damage had been done. There is a 1 or 2mm bump in the PEI where the nozzle stopped. I really don’t want to scrape off and replace the sheet again. Has anyone had any luck attempting to repair a sheet like this? I was considering heating the bed up to around 70 - 90c so the pei becomes a little soft and attempting to flatten the bump out, then wet sanding it with 90% IPA once it has cooled.
I’ve messaged support and that was their suggestion, but I wanted to reach out to the forum to see if anyone else has attempted a repair like this.