In article , says...

Now -- what I do is to pull the rod stock too far by about a
half inch, then apply the lever to the point where there is some drag,
and use the turret with the stock stop to push it back (with most of the
slack taken out by the lever. If the stock is dragging on the collet,
there isn't much travel left in the collet before it locks up. Balance
by feel the drag as you approach the end of travel on the turret, and
then lock up. There will be some stock movement as you lock up, but it
is pretty minimal, and pretty consistent.

OK, that sounds like an even better idea than just
pushing the stock up to the fixed stop, and then locking
the collet - which got me the five or ten thou repeatability.

For many kinds of parts that length tolerance is fine,
but nice to know that there's a slightly better way
(your pushback at impending lockup) to improve that a
bit.

Jim

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