On 2012-10-10, Jim Wilkins wrote:
"DoN. Nichols" wrote in message
...
On 2012-10-10, Paul C. Schiller wrote:

Hmm ... it might be a removable T-slotted plate with the chucks
bolted in place from the back.

Or -- it might be a flat backplate attached to two T-nuts (they
both seem to be centered over slots), and the chuck then bolted down
to
the plates using through screws accessible from the front, as is
common
for adjust-tru style chucks.

Enjoy,
DoN.

If you want to be clever and mysterious you could thread a
center-drilled plug with the spindle thread and drop it over a tee
slot bolt. It might shift under a heavy cut.

Unless you are careful to set up so the cutting forces would
tighten rather than loosen -- which would require a left-hand-cut
endmill in most cases -- unless you were milling out a cylindrical
pocket on center in the end of the workpiece. :-) Maybe even a square or
rectangular pocket as long as it is centered over the axis of the chuck.

The real question is: "Why try to be mysterious if it makes the
task harder?" :-)

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---