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Jim Wilkins[_2_] Jim Wilkins[_2_] is offline
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Default wood lathe chuck?

"Bob Engelhardt" wrote in message
...
On 7/14/2019 7:05 AM, Jim Wilkins wrote:
"Jim Wilkins" wrote in message
I'd be threading the back 1-1/2 - 8 to fit a BS-0 dividing head
and
an adapter I made for my South Bend. ...


The model for this is a faceplate with four removeable jaws that
mount
in radial tee slots, which I saw in an old book. The gear blank
mounts
on spacers that allow turning the OD and both faces of the edge,
and
the jaws only center it and then are removed, they don't control
wobble or need to be strong enough to resist cutting force.
http://www.neme-s.org/Model_Engineer...&%20Clamps.pdf


In that case, you could true up the face on the lathe and everything
would be nicely aligned


Unless it has tee slots like the wood lathe chuck, which would become
tapered. I'd clamp the stripped chuck body to a trued faceplate to
thread the spindle hole.

This was prompted by difficulties fixturing and remachining hubs that
adapt bicycle sprockets to the 3/8-16 threaded rods that lift the head
of my sawmill. These hubs fit in a Sherline 4-jaw on a 5C mount but
the total indexer height left little room to mill and drill the hubs.
https://www.sherlineipd.com/5C.htm

My Clausing mill is an early model without the head riser block. The
maximum table to spindle height is ~11.5", which fixturing and a drill
chuck eat up quickly.

LMS sells a 5C mount for small metric chucks. I put my 6-jaw on one.