I might take you up on that. I have not had any success with printing TPU on my 3d printer. It worked well for the battery enclosure, but I would love to get some replacement feet, and rollers for the trackball if you are able to reproduce them. Let me know how it turns out and I can pay you for the parts.if you need or want any 3d printed parts let me know
I’m going to try to make some new trackball rollers today out of TPU…