Polycord Slippage

[WarehouseCrew]

Jim (Mr. Forbes), what motor and gearing is your team using to drive the polycord rollers? Are you using solid or hollow (tube) polycord? Does thickness play a big factor, We have 1/4" tube, but have yet to fabricated lifter (hopefully tonight). Thanks.

[MrForbes]

This post kind of describes our system.

http://www.chiefdelphi.com/forums/sh...43&postcount=5

There is a 9 tooth sprocket on the transmission, and 22 tooth on the roller. We are using hollow 1/4" round urethane belting from McMaster-Carr.

We haven't experimented with different sizes, we just used what it appears that other successful teams have been using for several years.