pic: my more specific design

[sanddrag]

Originally Posted by EricH

Definitely. There was a team at L.A. in 2004 that had a three-wheeled, non-omni wheel version. It worked pretty well.

I sort of remember that. Did it have something to engage the large spoke structure to turn it?

I don't know if this is correct but don't they make these things so when you lock a wheel (such as against an obstacle like a stair) the torque isn't used by the small wheels so the whole thing is forced to turn? I don't really know how they do all the chain hookups and stuff since I haven't really studied these things much.