Hey guys hope you can point me in the right direction for adjusting the run out on the z axis, if I turn a 3" dia x 5" long down to 2.75" dia i Get about a ..005" to .006" fluctuation on the diameter at the point which I end face it is 2.745 but near the chuck it is a true 2.75 so its cutting on a taper... not sure how to go about alignment on this machine.
thanks

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much appreciated