I donated a Mini to a local school (a teacher there is a real tech fanatic). On the first attempt to print something with the class today, the Mini went through it’s auto-leveling sequence (supposedly normally, but I was not there to see it). When it started to print, the nozzle just punched into the PEI surface and wiggled around a bit, melting a hole in the bed. We are still trouble shooting the problem, and have just started in that regard.
I’d like to get a couple of spare PEI sheets on order. I’d prefer to go through the Lulzbot store (having the adhesive already on saves a bit of hassle for the teacher, if she ever has to replace it on her own). Unfortunately, the store says the Mini PEI sheet is “unavailable”. I want to get one on it’s way, since she was planning on using it in the class. I see a variety of sheets available on Amazon. I’d like to replace this with the same thing that comes stock on the Mini. Can anyone tell me the thickness of the stock Mini PEI sheet? Is there anything else I need to know when looking for a replacement?
Neither the teacher nor I know much about these printers. The problem is odd: On Dec 30 we printed the octopus test print with the sample of filament that came with the printer, then switched to PLA filament and printed out some test “S” plugs (basically 1" diameter X 1/8" thick disks with male and female “S” outline on them). Both printed flawlessly. The printer has not been used since, until today. Machine is still behaving oddly. We’ve got a call in to tech support. I’ll post more troubleshooting data in a new thread when I get more info. Just wanted to get the PEI on order for now.