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Any Way To Avoid PETG "Crumbs"?  

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ssokol
(@ssokol)
New Member
Any Way To Avoid PETG "Crumbs"?

I've recently run several versions of a design in Prusament PETG on my Mk3S+ using the default Prusament PETG settings in Slicer. The prints work (I've had one failure out of 8 so far) but seem to always contain little wads of plastic on the trailing edges (mostly) of various surfaces. Most of these break away cleanly in post, but a few are embedded and require quite a bit of effort to remove. Does anyone have suggestions either for the design or the printer configuration that can help eliminate these?

PETG Crumbs

The print pictured was printed from a new spool of Prusament PEGT Anthracite Gray taken directly from the vacuum-sealed bag with the desiccant, so there shouldn't be excessive moisture. (It's also winter here and ambient moisture is fairly low.)

Any suggestions would be greatly appreciated.

-S

Napsal : 15/12/2022 4:22 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Any Way To Avoid PETG "Crumbs"?

I would definitely dry the filament. The stringing and "crumbs" are typical of moist PETG. Just because it was in a bag doesn't mean anything. Could have been sitting in a warehouse for months. And if Anthracite Gray is anything like Neon Green, which I love to cite as the worst example, it may need overnight drying and still crap out by the end of a day of printing. 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Napsal : 15/12/2022 4:33 pm
ssokol
(@ssokol)
New Member
Topic starter answered:
RE: Any Way To Avoid PETG "Crumbs"?

Thanks! I tossed the spool in the dryer overnight and it is performing much better now. Strange how much impact a minuscule amount of moisture can have. 

Napsal : 16/12/2022 6:29 pm
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