Vevor rock tumbler roller wheel

Bad injection mould or bad design, or maybe I'm overloading my barrels, I'm not sure…but the roller wheels have given up on me one by one. Vevor was kind enough to either ship me replacement ones or refund part of the order and I picked the latter since I can print my own in CF-Nylon using Markforged machine.

I think it could be printed even in PLA which is pretty ok for wear resistance. I'm also printing a few in TPU to try out. Otherwise PETG should be fine as well. There is some heat coming from the motors, PETG/NYLON/TPU is probably a better choice than PLA.