this post was submitted on 13 Jul 2023
474 points (98.6% liked)

3DPrinting

15606 readers
230 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
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 8 points 1 year ago (2 children)

Obligatory I hope that’s not pla yadda yadda

[–] [email protected] 17 points 1 year ago (1 children)

1.5 years going strong, but I soon have a revision worthy of a new print.

[–] [email protected] 4 points 1 year ago (2 children)

It's funny cause I always kinda thought that was a bit of hyperbole regarding uv exposure.

Made a bracket to fix a broken mount for our back seat cam in our car. Printed in pla just to test the dimensions. It worked so I left it in the car. Didn't make it a single day. Completely warped.

Reprinted in petg and it's been going strong for 2 weeks now.

[–] Sludgehammer 9 points 1 year ago (3 children)

Wouldn't heat be the main problem in a car? On a sunny hot day a car can get up 130+ easy, add in the heating from the sun actually hitting the print and it's not hard to imagine it could get warm enough to become a little malleable.

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Yep. I was under the impression that UV radiation causes PLA to get brittle over time. But heat causes it to warp very quickly.

[–] [email protected] 3 points 1 year ago

Definitely heat - pretty much all windshields/windows nowadays block UV, otherwise the dash/seats/etc. would also get wrecked way quicker than they do, not to mention drivers getting sunburn even with the windows up.

[–] [email protected] 3 points 1 year ago

Hmm the car is parked in the garage so I just kind of assumed it was the UV during driving but yea I guess it must have been the heat.

[–] [email protected] 5 points 1 year ago

in a car? during summer? Ngl that sounds more like a temperature issue than a UV one. PLA doesn't degrade that quickly and it can get pretty hot inside a car during the summer