[JWB_Machining]

Hey,

My previous thread I was talking about how I had to machine cylinders that are as close to a 2:1 Length to Diameter Ratio as possible. I am holding these cylinders in a 5C collet so as not to ruin the finish on them. My one issue is how can I measure the length of this cylinder without losing my work offset? My current plan is to Face both ends, take it out of the collet measure it, then put it back in and reset my offset and face off the rest that I need to get the desired length. Resetting my offset though makes me think I won't be able to stay within .001 tolerance like I want to. Anybody have tips? To set my offset I plan on using a shim to press between my tool and my workpiece and setting the offset as the tolls position plus the shim thickness, this is how I set the tool offset off the chuck face but I figured I'd throw it out there if anybody had some common sense solution I'm not thinkg about.