A Head Alignment Process for a PM1340GT

Fascinating, what leads you to believe that you will achieve 4 decimal accuracy when you move the tail stock next week?

By far the best way to check taper for a given part is to measure the roughing cuts and a finish cut after turning and then adjust the machine accordingly then NEVER move the tail stock until all of the parts are finished.

The chances of holding .0005" over a 20" length repeatably are slim to none even in a $100,000 machine.
 
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