Originally Posted by
Jedi
Today i levelled the machine, and put in a 2" piece of mat'l. It was magnetic and im pretty sure it was stainless so im thinking its a 404 or a 1040 but it wasnt mild steel. Anyhow the problem now is getting a clean cut on it. I keep getting vibration after 6" and ive changed from 300 to 2500 rpm and .5 ipm to 20 ipm. Ive changed clamping pressures and roughing bits to finishing bits. There is a .001 taper over 2.5", getting smaller towards the tailstock. Any help would be great as ive just finished cnc/machinist diploma and havent attempted something like this. And the boss isnt a machinist.