Wash your print surface with dish soap and water and dry with a paper towel or fresh towel. Avoid touching or contaminating the surface once clean and dry.

If that doesn’t work, get some magigoo

Probably have to scrape it off with a razor blade. You might try acetone as a last ditch solvent method, but that’s it’s own bag of worms.

Those are a lot of fun to play with! Glad you got it working! Textured PEI sheets are great for PLA in general. Usually a good wipe with isopropyl alcohol before a print works to keep the adhesion strong. I find every once in a while actually washing and scrubbing it with dish soap and hot water is needed to refresh the PEI surface.

There’s nothing stopping anyone doing the same with lemmy posts though is there?

From what I’ve heard the Bambu Lab A1 mini is a great option for if you want to just print and not have a lot of maintenance. The version without the AMS is $299 and the AMS can be a separate upgrade down the road to enable multi-material prints.