[EricH]

Originally Posted by JesseK

Team 357 (The Jesters) has some experience molding smaller parts. They've made their own custom mecanum rollers for years now. If you have a copy of the FIRST: Behind the Design books, they're in 2007 (I think) and describe how they made quick molds for things like their battery holder, mecanum rollers, and even a 80/20 UHMW plastic linear slide.

They make the whole wheel... And they're one of the few teams to be in both Behind the Design books. 2006 details their wheels; 2007 goes after everything else. As I recall, they also went for a patent on the linear slide (which isn't UHMW; it's urethane, polyester, and a molybdenum compound molded into shape).