this post was submitted on 13 Jul 2023
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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.
Yep. I was under the impression that UV radiation causes PLA to get brittle over time. But heat causes it to warp very quickly.
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.
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.