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First glass bed failure with PETG (programming.dev)

submitted 1 year ago by CameronDev@programming.dev to c/3dprinting@lemmy.ml

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I have been printing with PETG on glass for a little while now, and have gone through almost an entire roll. Yesterday I had my first print stick so hard that it delaminated the glass :(. I stopped using hairspray as it made the prints not stick at all, and printing bare glass was just fine. But something about yesterdays print made the glass give up. Is this how PETG + Glass normally fails? Works perfectly for years, and then suddenly fails?

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[–] UsernameLost@lemmy.ml 1 points 10 months ago

Windex to clean, let it dry for a bit, then a layer of gluestick has always worked for me, as long as the bed heats to 60°C for printing. The z offset has to be a bit different for PETG than PLA, which can be a bit tricky. I think (been a whole since I've printed PETG) it had to be a bit higher than PLA, so it wouldn't "squish" as much as PLA. Seemed a bit counterintuitive, but it solved most of my problems