Thanks for the tip on the bolts.

I was thinking about using bolts but in my application, I will be not be designing a fighting robot but mass producing some custom motor arm systems. Re-attaching and attaching motor arm parts will be done constantly throughout the day. Therefore, I was wondering if there are any kinds of special wires out there with interconnects that can take abuse from pulling, rotating or twisting.

Usually if you stretch/pull on a cable hard enough, you cause extreme damage and this may cause loss of conductivity. I was think that if I could find something designed to be more elastic then I would have to worry so much loss or damage.

I guess its hard to find the perfect wire. there maybe problems with long term performance with the number of repeated times a wire can be stretched or the material might wear out against other moving parts rubbing against the wire.

Thanks for the info on the Silistrom cables. I will be looking into that more.