this post was submitted on 06 Nov 2023
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Windex and gluestick are other options besides hairspray. And yes, you experience is not uncommon.
Never tried Windex, but might give that a go. Gluestick had the same issue, lots of prints wouldn't actually stick so I had lots of failures :/ I vaguely remember someone suggesting sugar water, so might try that as well.
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