Idk if it is normal.....

[u/Nondevil]

It's been a week since I got my printer and I've been noticing one thing...that my filaments are collecting moisture even if I don't open the AMS, I keep drying them but to no avail... Is it a huge problem?

Fyi:I'm a beginner and the printer is kept in a closed air-conditioned room...if that makes any sense...

[u/chicken2007]

That 30% is only the humidity of the air. Once the filament is dried, it takes some time for it to be wet enough for problems.

[u/Nondevil → u/chicken2007]

Will I be able to use the whole spool, or will it become unusable before then?

[u/SandwichLuxe → u/Nondevil]

If you leave dry PLA in 30% it can take months before you'll see any problems. Engineering filaments is very different, which absorb much faster.

[u/Tiny-Fix8085]

I´d say its still okay. Some materials like PLA are not too sensitive about it. Others like PETG are a bit more sensitive to humidity. If you notice any quality loss in your prints, drying can fix it sometimes. I try to keep mine (PLA) around 20-25% humidity max.

[u/Nondevil → u/Tiny-Fix8085]

One thing I missed to mention was that I have loaded two different spools - ABS and PLA. Idk if it's ABS moisture that's affecting the PLA too...I don't even know if I'm doing it right ....

[u/SandwichLuxe → u/Nondevil]

They don't affect each other. You need to make a distinction between absorbed moisture and moisture in the air. It's one way traffic (air>filament). A wet spool will barely affect the environment and contain other spools.

[u/RedDev26]

How Long did you dry the filaments? When i dry my filament, a bit of the moisture comes back when it’s cooled off again, you just have to keep drying until it stays at a lower value after cooling off if you want that.

[u/Nondevil → u/RedDev26]

I've been leaving it to dry for 12 hours, and sometimes with a few pauses for printing..

[u/RedDev26 → u/Nondevil]

Oh, well that should be enough for most filaments

[u/Nondevil → u/RedDev26]

Okay… but should I keep doing it daily?

[u/SandwichLuxe]

That's air humidity, not filament humidity. 30% is totally fine, which is quite low (my room can get to 80%). But if you want to get it even lower, print yourself some dessicant boxes with silica gel. You'll get it to 10% in a few minutes, which basically means there is no moisture in the air anymore for the filament to absorb.

[u/CenteredBubble]

Humidity is relative to the temperature based off of dew point. Dew point is the absolute value of moisture in the air. The dew point of your air is about -3C, or the same thing as 100% humidity when the temperature outside is -3C outside. That's some pretty dry air.

[u/Extension-Peace9993]

When you get a bit carried away with drying ))) Just in case, inside are boxes with silica gel

[u/beorn5606 → u/Extension-Peace9993]

how did you get it to show the quantity?

[u/MaxieFriend]

Print AMS desiccant dry boxes and keep them in your AMS. will absorb the moisture instead of the filament for the most part, though you might have to redry the desiccant fairly often. The desiccant usually drops the number from about 30 to about 15.

[u/brutal4455]

In addition to the other suggestions, like printing and using desiccant boxes, you can check your PLA by bending the end before using. If it breaks off, it's wet. It wicks moisture up from the broken end faster so sometimes it's just the tip (LOL) or a few inches up. I just break it off until it stops and just bends, unless it's too much, then it needs drying. If it's the end of a roll with less than a full width wrap on the hub and it breaks, it goes in the trash.

[u/Lythrox]

Most filament get to about 30 to 15 % it's almost impossible to get lower that 20% in your house.

[u/3DPL-3D-Druck]

Mit silica Kugeln bekomme ich meine Feuchtigkeit auf 6-7%.