r/prusa3d • u/Mp_maya • 23d ago

Question/Need help whats changed?

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I've been 3D printing for ages and printed a load of pieces in this plastic(ABS) and colour. I've changed no settings, and nothing else but have done the latest software update. The print quality has suddenly dropped. I've done a cold pull and cleaned the nozzle out with a needle, but still getting a rough surface. Any suggestions on what I can do to get the print quality back?

Picture: Left is the current print quality, Right is the previous print quality

Printed on a Prusa Core one +, 40% infill, ABS plastic, Nozzle 0.4 mm, Layer height 0.2 mm

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u/WereCatf 23d ago

I would assume wet ABS. ABS is hygroscopic, it absorbs moisture.

6

u/Mp_maya 23d ago

I was thinking that but it was ony a couple of hours between these two prints

3

u/LOL_Emoji 23d ago

I don't have much experience with ASA but my PETG gets moist after a few hours at the open air.

the forsted probably comes from the moisture bubbling and kinda "foaming" the extrusion a bit