thank you fellas. i appreciate it.
i use the rotary table to turn the piece while cutting and grinding on the bridgeport. i made a mandrel to support the work piece, on center, as i cut or grind. the neoprene i get is a 75a durometer so it is rather hard. i have done about 7 or 8 sets of slicks now. so i have a pretty decent machining routine established. each set requires a $50 chunk of rubber to start and it makes 2 large slicks. i will say this,.......prepare to get really dirty. when you grind this stuff the black dust you make gets everywhere. i buy a 5" round to start and reduce it to a 4.312 dia. so, you will be making alot of rubber dust.