What is your ideal ambient humidity?

Submitted ⁨⁨1⁩ ⁨year⁩ ago⁩ by ⁨Lexam@lemmy.world⁩ to ⁨3dprinting@lemmy.world⁩

I print in my basement and keep a dehumidifier on 35%. Right now it’s down to 20% because winter. I have a dryer and will usually dry out a new roll. But many times I’m lazy and leave them on the spool and they usually print just fine.

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IMALlama@lemmy.world ⁨1⁩ ⁨year⁩ ago
My printer and filament live in my basement. We have a dehumidifier down there set to 55%. Some filament spools take a year plus for me to go through and I’ve never dried any of them. I have not noticed a meaningful change in print quality, but I also rarely go from an old to a new spool of the same material back to back.

I printed mostly PETG and ASA with some PLA thrown in.

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morbidcactus@lemmy.ca ⁨1⁩ ⁨year⁩ ago
Stuff that’s in use I try to keep inside the enclosure, no humidity control in my garage so at the whims of humid continental climate, gets nasty in the summer. I keep things vac sealed with silca gel for long periods and print from dry boxes or enclosure mounts to take advantage of the lower humidity while printing.

Working on a powered dry box using solid state dehumidifiers like used in this, hope that’ll help with humidity issues.

Some filament isn’t super sensitive, my experience pa6>petg>abs=pla.

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bluewing@lemm.ee ⁨1⁩ ⁨year⁩ ago
Yeah, it’s -11F/-24C right now and the humidistat is saying it’s 22% right now. Usually, in the summer time humidity ranges from 50% to 75%. But I have stored filaments like PLA and even PETG open on a shelf without care for over a year. Even now, the boxes they are stored in are now air tight.

I have never need to dry PLA and I do dry PETG occasionally if I really need that super clean print. Otherwise I just either manually remove the slight stringing of the PETG or I totally ignore it. I do keep a spool of TPU around and I do dry that before use. But it seems to holds up well for several weeks just hanging on the printer.

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tty5@lemmy.world ⁨1⁩ ⁨year⁩ ago
I store all my filament in ziplock bags with some 3a molecular sieve - even after 2 years in 45-65% humidity at 21C room I don’t have to dry PETG.

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- Lexam@lemmy.world ⁨1⁩ ⁨year⁩ ago
  I do about the same. Usually I’ll throw the silica packets that come with the roll in my filament dryer and then in the bag.
  
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  - tty5@lemmy.world ⁨1⁩ ⁨year⁩ ago
    Check silica packet effectiveness below 50% humidity… It’s not great. Molecular sieve on the other hand has no problem getting humidity below 5%. I managed to buy a 10kg bucket of 3A sieve for about $120 and it’s going to be enough for many years.
    
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31ank@ani.social ⁨1⁩ ⁨year⁩ ago
It heavily depends on the material if it will print fine at higher humidity, but having around 20-35 seems good afaik. I printed PLA successfully at around 55% for a long period before switching rooms and never had problems, but I wouldnt store PETG/TPU there without a sealed box

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