You can put a piece of flat metal between the points of your centers
and the misalignment will show up by the way the metal deflects. It
kind of magnifies the alignment errors. If it were not so late I
could probably give you the amount of deflection on the end of the
flat stock depending on the distance from the centers, sines and
tangents and stuff but you get the idea. Shims are OK.
A microscope and sewing needles works, too.
--- In email@example.com, "James Benjamin Ph. D"
I receintly changed my headstock. I am trying to center thetailstock
to the headstock I inserted a MT3 to MT2 adapter into the spindle. Iget
within a few thousands.