PETG is just as stringy as I was told
PETG is just as stringy as I was told
Yikes. Gonna have to work with this material a bunch to learn how to use it.
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First rule of PETG-club is "dry your filament", second rule of PETG-club is "dry your filament"... Thrid rule? Nope, it's "store your filament dry"
Jokes aside, other things you could look at:
- nozzle, how worn is it?
- calibration tests: did you do a temp tower? Calibration cube? Retraction test?
- The vertical surface doesn't necessarily have that appearance as a result of wet filament. In my experience, wet PETG will result in more random variations than that. It looks too regular IMHO, is everything that should be tightened actually tightened?
- have you calibrated the extruder steps?
I would bet on retraction here. Dial that in and 90% of the stringing goes away.
Fourth rule… painters tape as bed surface will save your PEI sheets and holds PETG really well.
Or G10/Garolite
Using G10 can recommend if you scratch it up you can just use the other side and if you have a metal probe you can add aluminium tape to the side you aren't using and get full functionality.
Or just use a textured PEI plate at the proper bed temperature. There is very little need for special adjuncts to print PETG.
I pop my PEI bed with finished print into the freezer for about 5 minutes. Pops right off, every time. No tape, no glue, I just wash the bed with soapy water between prints.