storing of filamenter bewteen prints (sopuli.xyz)

submitted 11 months ago by DreadPotato@sopuli.xyz to c/3dprinting@lemmy.world

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How long do you have filament sitting "in the open"? I mostly print with a single filament roll at a time, and just leave it on the printer. A 1kg roll lasts me several weeks. For long time storage I keep it in an air tight box with disiccant pouches.

But how long can I let it sit before I should start storing it with disiccant and/or drying the filament before use?

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[-] squaresinger@feddit.de 4 points 11 months ago

Depends on the relative humidity in your house and the type of filament you use. I have usually ~30% humidity in my flat.

PLA reall doesn't care about humidity. I've got some 5yo rolls that still print like new, without storing them air-tight.
PETG is fussier. After a few days they start to act up. I always have them in the filament dryer while printing.
Specialist filaments (e.g. Nylon, Carbon, Wood) might be much more hydroscopic, depending on the material.

[-] DreadPotato@sopuli.xyz 2 points 11 months ago* (last edited 11 months ago)

Inside it's around 50%, fluctuates a bit depending on season.

[-] squaresinger@feddit.de 3 points 11 months ago* (last edited 11 months ago)

That's a bit high. PLA still won't care, but PETG will probably only print perfectly for a quite short time (maybe a day or two).

That said, depending on what exact blend it is, Silk PLA or other PLAs with additives might also have an issue with humidity.

this post was submitted on 13 Dec 2023

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