[Burgabot]

Well, I was hoping that some of you could help me on this one. Something that would be very useful on our bot this year would be something like what I drew up and attached to this post (please forgive the rough sketch, I just drew it in Paint). It is something like the commutator of a motor, in that it uses brushes to transmit current on a rotating cylinder. You'd connect wires to both ends, and you'd be able to turn one end freely without worrying about twisting the wire. The rings are concentric circles so that many wires could be connected. If anyone knows what this is called or where to get one, it would be greatly appreciated. Thanks!