On Aug 10, 1:31*pm, Ignoramus6985
wrote:
On 2008-08-10, Stuart & Kathryn Fields wrote:
Looked at your 3 jaw chuck. *Question: *My rotary table has 4 slots @ 90°
for T nuts.
Your 3 jaw has 3 holes @ 120 °. *It would seem that another plate would be
required to mount that chuck on my rotary table. *Is that true? *Am I
missing something?

My second-hand rotary table has tapped holes all over it from previous
fixtures. None of them weaken the tee slots and they don't interfere
with using it. Why not screw the chuck directly to the table? If
there's room, you could use undersized mounting screws and make blocks
that screw down in the tee slots with lateral screws to center the
chuck better.

If the three front screws go through a ring of solid metal in the
chuck, maybe you could drill a 4-hole pattern in it as well.