We had a fellow come into our shop to machine some rings 24" od x 12"id x4" thick. He couldn't even get them in the lathe chuck and true it up. He then went onto a 48" Bullard vertical borer and finally got them trued up. He had the crossrail way too high and was using an 18" boring bar instead of lowering the cross rail and using the tool holder. he finally gave up and someone else came over to finish them. He ran a cnc horizontal boring mill with a 8" spindle and a table 6'x 8' and a vertical traverse of 6'. I was amazed he didn't even know the basics of setting up a part or tooling. I'm a dinosaur that has always done it manually and too old to bother with cnc. Des.
