this post was submitted on 01 May 2026
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Hi, I'm searching for a fillament with a similar hardness/resistance to PLA but which doesn't plasticly deform when bent for longer periods of time.

This is for a wearable, specificly the c3cat cat ears. I printed mine out of PLA but they got too loose after 2 days of wearing.

I already got reccommended TPU 100A, but I worry that it's too soft.

Thankies :3

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[–] MxRemy@piefed.social 6 points 2 days ago (5 children)

Polypropylene, hands down. Most plastic thingies that're meant to bend constantly without wearing out are PP. Like those little straw caps attached to big drink tumblers? The bendy part, if not the whole hinge, is usually PP i think. I think generally things that could be described as "living hinges".

I will say though, that it's easily the most difficult filament I've ever had the displeasure of printing. It absolutely REFUSES to stick to literally anything but other polypropylene lol. What you do is just put some packing tape on your bed, that stuff's made of PP as well.

[–] Sphks@jlai.lu 2 points 2 days ago (1 children)

This is pure genius. Is the tape too stuck or you can remove it ?

[–] MxRemy@piefed.social 2 points 1 day ago

It's not too hard to remove from the bed. It will, however, become one with the print itself lol

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