On Sat, 13 May 2006 23:55:54 GMT, Gunner
wrote:
snip
Many machines can be fitted with a fast release on the half nut if its
a half nut threading style machine..which the Hardinge is not.
snip
Problem is not opening the nut, it is "picking up" the thread.

When you use metric/inch change gears the thread indicator no
longer works. You have to keep the half nuts closed and reverse
the spindle to return to the starting point.

Quick retract tool holder may help, but like the old joke says
"you gotta be quick..."

For info on quick retract tool holder kit see
http://www.statecollegecentral.com/m...he/MLA16D.html

AFAIK these are no longer available new however you may be able
to pick up a good used unit.

Note that the three armed machinists to operate this set up are
no longer available either.



Unka George
(George McDuffee)

There is something to be said for government by a great aristocracy
which has furnished leaders to the nation in peace and war for generations;
even a democrat like myself must admit this.

But there is absolutely nothing to be said for government by a plutocracy,
for government by men very powerful in certain lines and gifted with the "money touch,"
but with ideals which in their essence are merely those of so many glorified pawnbrokers.

Theodore Roosevelt (1858-1919), U.S. Republican (later Progressive) politician, president. Letter, 15 Nov. 1913.