[gorrilla]

Originally Posted by squirrel

You might consider using only a belt or chain drive, with a reduction ratio of about half the inch diameter of the wheel. ie. 4:1 for an 8" wheel. With the smaller pulley/sprocket on the motor.

thats what we did,

one CIM in a toughbox chained to a sprocket(which is bolted) on a 5/8 shaft.
(using two kit wheels from last year, bolted together(not attached to the shaft at all!!! just the compressin of the wheel-bolts and the plastic hubs are enough to hold it on the shaft nicely)
works pretty well, we are getting around 6ft maximum distance, and at 4ft were getting around 80% accuracy