"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:


Why not just build a couple of adaptor plates that DO extend out past the
perimeters of the things you want to bolt down? Bolt one to the back of
the chuck using the existing blind holes, then bolt the plate to the
table (rotary or mill table) with tee nuts/bolts as usual for fixturing
parts. If necesary, duplicate the method on the face of the rotary.

That's the simplest solution so far. No drilling the chuck or complicated
wedges/cams to machine.

--
Paul Hovnanian
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David Bradley (IBM programmer who created the Ctrl-Alt-Del reboot
keyboard sequence), "I may have invented it, but Bill made it famous."