Paul C. Schiller wrote:
Hi,

So how do you prefer to attach a plain-back, 6-inch, 3-jaw chuck to your mill's table with three T-slots?

Appreciate any wisdom offered.

PaulS

I have a backplate about 8" in diameter on the back of my 6 1/4" chuck
and just clamp it to the BP table with a couple of common clamping bars
with a bit of Al in between to stop marring of the upper surface. The
back of the backplate also has a removable spigot that locates in the
centre of my 10" rotary table and the back plate has 6 holes spaced
around it to allow it to be held down with T nuts and cap head screws in
the rotary table slots.