I printed both versions @ 205°C/85°C, no cooling but an open chamber.
I measured the original foam bumper as precisely as possible to get a perfect fit of the printed ones. I like the TPU one better imo. Never crash tested either of them tho, but I think the PLA one may be a little too sturdy, so when you hit something you may or may not break your chassis.
Let me know!
TT02_Bumper.stl | 27.0KB |