Spindle or Turret alignment should not affect concentricity. It is a result of the relationship between the spindle bearings,the chuck jaws and the part. Assuming the jaws are bored correctly the next place to look would be the material. Are you chucking on a good round machined surface or a stock finish? You won't get a result any better than the surface you're chucking on.
Dave
Last edited by daking; 10-29-2006 at 09:14 PM.
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