_Minerva_

In most skate holders, I believe they use nylon, or nylon reinforced ABS. Both are printable in a 3D printer. You should be able to use just about any hard, printable plastic though, such as XT Copolyster, which is specifically made for 3D printing. Not too sure how it would turn out as a skate holder but that's what experiments are for lol. I'm just curious as to how a brake and acceleration system would be incorporated.

Sounds good! Using a smaller version of a car suspension would be interesting. And the pressure plate would have to have resistance so you don't lean on it all the way without trying. I'm not much of an engineer or artist, but I'll try to help out anyway I can

Hah awesome. I've been designing a type of boot+holder combination based off of skate sneakers and AT designs (which are really hard to find, I've realized) and I'm wondering if anyone has figured the engineering down to fit it into a shoe and power the wheels yet? Would a hub motor work any?

Anyone still here?