Hey there!
I recently switched from PLA to PETG for my prints. PLA worked perfectly, but PETG is a little more complicated, as you know. I’m using a Creality SpacePi X4 to dry the PETG before printing. I have a few questions:
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Can you print PETG with a 0.08 mm layer height? I achieved this with PLA and the results were great. I believe PETG is more commonly printed at 0.12–0.16 mm.
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Does PETG tend to flatten during printing (much more than PLA)? I noticed my parts have a kind of egg-shaped profile, and I think it might be caused by the pressure of the upper layers on the middle layers.
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We know that if you want to print a 100 mm part, you might end up with 99.80 mm (or so). This is called compensation. For PLA, I ran some tests and got about 99.82%. For PETG, I ran some tests and I think it should be closer to 99.25%. Does that compensation value sound familiar to you?
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The surface finish is not even close to what I achieved with PLA. The nozzle tends to leave small blobs or bits of filament that are not properly attached to the part (see image). Any ideas on how to improve this?
Thanks in advance!!!