this post was submitted on 19 Jan 2026
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I've had a MK4S for over a week now, and 100% of the prints I've tried to make on the textured sheets have partially or totally failed. PLA prints beautifully on the smooth sheet, but PLA, PETG and ABS, I think I could print on the surface of a 10 inch tank of oil with more success than the textured sheet. Plastic doesn't stick to it. I've wiped it with isopopyl, I've washed it with dawn...it's a bad print surface and I want my money back.

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[–] j4k3@lemmy.world 2 points 1 week ago (1 children)

It is just a cleanliness standard. It is not required. I spent a decade in the details of automotive paint. I only covered the surface basics for paint. What I call clean for paint is an order of magnitude more dirty than a surgeon, and they are orders of magnitude more dirty than a silicon chip foundry. When it comes to making plastic stick and look pretty, an automotive painter might be helpful for framing the scope of what is possible. All I can tell you is I have a Prusa and never have these problems, so I explained my experience and methodology as to why I do as I said. Again, sorry this upsets you.

The part that really upsets me is that, when I say "I don't like PEI, what are other, non-PEI build surfaces?" People respond with walls of text about how to print on PEI which isn't the god damn mother fucking question I asked.