[QUOTE=LeeWay;1769078]
I have measured parts that were made a week apart and they were almost identical. I only tested with calipers, but I will mike the ones I make tomorrow with the same kind I made today and let you know the results.
My lathe sits right in front of the shop AC so it is always about the same temperature. I am sure that may play a role in some shops.
I just checked the switches again, ref, zero re-ref, +.010 out, same same -.010, -.005. So as long as I can enter the diam of one tool then I guess I'm ok. Yea maybe I have older version switches or something. Temps are pretty stable. So there is no way I could ref one day and have it come out the same as the day before.
Here is my setup. notice the ER16 collet holders buried in the blocks.