this post was submitted on 12 Mar 2024
30 points (96.9% liked)

3DPrinting

15591 readers
11 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: [email protected] or [email protected]

There are CAD communities available at: [email protected] or [email protected]

Rules

If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago
MODERATORS
 

I watched a 3D printing youtuber say that Adam Savage said 20% but 10% is what he uses.

I have never seen my sunlu dryer show anything bellow 23% even after days of use and I have no idea how to achieve 10 without cooking the filament.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 1 points 8 months ago* (last edited 8 months ago) (2 children)

Yeah.. I've been printing now for 11 years..

I've submerged PLA in water overnight and then printed it to prove humidity has no effect on PLA.

PLA doesn't give a shit about humidity and never has. All the early days of 3D Printing that used Nylon needed drying out.

Even early days PLA getting brittle was about strain fatigue on the filament and nothing to do with humidity. But modern day PLA these days doesn't suffer from those old school issues anymore.

Dust will cause more issues than humidity.

[–] [email protected] 3 points 8 months ago (2 children)

I've had issues with wet PLA filament that were solved immediately by drying it.

[–] [email protected] 1 points 8 months ago (2 children)

What issues? Brittleness?

You solved that via annealing and releasing the stress in the PLA, not by drying it.

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago)

I've had bad stringing before with PLA, drying it made it go away completely with the exact same print settings and model.

I'd argue that the vast amount of (recent, not only older) resources available online showing similar experiences to mine disproves your statement that PLA has no issues with moisture retention.

[–] [email protected] 2 points 8 months ago
[–] [email protected] 1 points 8 months ago (1 children)

Likewise, I have had PLA get brittle and snap on the way to the extruder when left loaded on the printer and exposed in my basement for extended periods, but this behavior disappears after I bake it in the filament dryer, even on the same spool.

[–] [email protected] 2 points 8 months ago

You solved that via annealing and releasing the stress in the PLA, not by drying it.

[–] [email protected] 2 points 8 months ago

That's interesting. I've never noticed issues either but then again I usually keep the spools in sealed abgs with silica