I hear this question every so often, at work and here.

I don't think I've ever seen a lathe incapable of producing accurate results
(such as a lathe should be able to produce). I think they only time this
really comes up is when the left end of the ways are worn due to the
carriage staying near the chuck.

Other than that, I think it's a foolish question. My standard answer at work
is something to the extent of, "it will make parts as accurately as you are
capable of making them".

Regards,

Robin


"Ken Strauss" wrote in message
m...
Many small lathes quote impressive but incomplete accuracy numbers in
their specs. For example, the Prazi SD400 (see
http://www.emachinetool.com/new/cata...?ProductID=180)
claims a "spindle accuracy of 0.0002". What would be a reasonable
expectation of total accuracy? Say the variation in diameter along 12"
between centres?