[JamesTerm]

Originally Posted by Jared

We put the nut in an 1/8 inch wall aluminum box, drove it with a sprocket, and used two of these (http://www.mcmaster.com/#60715k11/=sysaez) bearings.

I almost understand this and see the benefit of doing it this way... how exactly does the sprocket interact with the nut though? I know the vex #25 sprocket has a nice 1/2 inch Hex ID... does a sprocket like this mate with the driven nut in what you were saying?