I picked up a new G0768 early in the summer and hit a issue while checking out the run out on a new chuck. My new chuck is a 5" model from LMS. I am using a 3" piece of 3/8" piece of carbide rod as a checking sample. My indicator is rigidly mounted on the tool post. My measurements are being taken about 1/2" from the chuck. Rotating the chuck mount location around, I got the measured run out <.0005". This is fine. The thing I noted is that I can deflect the reading about .001" by pressing on the chuck. Is this normal?
Last edited: