Thanks to all that responded to this query.
OK, I am *totally* intimidated after going through some of the websites
suggested :-(.
It is going to take a LOT more experience and especially more
understanding than I have before I start tearing down the lathe to that
degree.
Of interest, I dug out that bolster bar I made out of the 1" stainless
rod and measured that at each end (3") and it is only off by 0.001.
Chucked on one end, center drilled and supported by the live center in
the tailstock.
Wonder if my problem is flex in the workpiece, as in I am hogging it?
It would see that would make it off in the middle were it is unsupported
though.
Yep, I am totally confused about what is going on here.
The item that was off the 0.015 was wood and I am now wondering if the
centers being slightly off from the center marks (assuming they were
perfect) would cause that much difference? I would think that turning
that down would result in it being symmetrical / consistent from end to
end once it was turned down far enough?
Starting to think I really need a mentor or at least a decent course
about all this.
Thanks & take care, Vikki (The Massively Confuzed).