I am considering using TPU (PolyMaker 95A HF) as a long strut in a lightweight assembly. The assembly is meant to be used outdoors and I wanted to check cold tolerance. I am using TPU for its impact resistance and resilience, but was afraid it would become brittle in the cold. I printed up a couple of potential designs and stuck them in my deep freeze at -20F (-29C). I am happy to report the TPU didn’t get brittle. It was a bit stiffer than usual, but I was able to bend it in half without it breaking or creasing. This is exactly what I’m looking for! Thank you PolyMaker!
#TPU Cold Tolerance
winter pasture
carmine bison
Never thought about using it specifically like that. But can see where it could be a useful swap
winter pasture
Yes. The amount of force the strut has to bear is minimal. Toughness and resilience is much more important. I was using a thin fiberglass rod, but sourcing and cost was a pain. Printed TPU is more cost effective.
carmine bison
Alum extrusion fixed almost as much as duct tape!