On Jan 6, 11:30*pm, "Martin H. Eastburn"
wrote:
...

If you take a machine and add higher precision/accuracy to it the worst you
get is the machine spec. *If you add lower quality parts, the machine degrades
to the precision/accuracy equal to the worse values.

Martin

Unless you can use the machine tool to custom-fit the part, like a
chuck backplate.

jsw