|
The last two years we, along with a lot of other teams, used Omni Wheels. Basically, omin wheels act as "powered casters." Imagine a wheel that can be powered like any other, and yet has almost zero lateral friction.
I wish I had a picture handy, but I don't. Take this example, however: one team uses a round object with washers all around it. You can use this as a drive wheel, with the washers digging into the carpet for traction, and since the washers are circular, they will spin when you move them laterally, and create very small amounts of friction.
Is that helpful, or were you looking for a better concept for a non-powered caster?
Stephen
|