On Mar 11, 2:12*am, wrote:
On Thu, 10 Mar 2011 13:31:44 -0800 (PST), Jim Wilkins
...
1) Do it on the Taig. Make a divider plate which should be relatively
simple and the spindle lock is easier to make than on the 9x20. Adapt
one of the toolholders (or make a brand new one) for the Dremel flex
shaft. The only thing that put me off that is the 1/8" or so limit of
the Dremel. In fact the whole concept started me thinking along the
lines of buying a new Taig headstock and adapting it as a dividing
head - then I could also mill etc. on the X2.

Instead of locking the spindle you can clamp the divider plate. The
leverage would be better.
The laminate trimmer has 1/4" collets and better mounting surfaces
than a die grinder.
Speed control:
http://www.amptone.com/images/tenmavariac.jpg

3) Do it on the *wood lathe* - that one has not only a spindle lock
but an in-built dividing plate with 72 positions. Again the Dremel
holder should be easy to adapt to the tool rest banjo, but the above
limitations apply. Also would have to get a new chuck for the 1"-8
spindle. OTOH how easy would it be to get one of those MT2/plain
adaptors and cut *3/4"-16 thread on it and use it with the Taig
chucks?

Buy one of these, tighten a nut on it and thread the nut:
http://stores.homestead.com/WaldenSpecialties/-strse-31/MT2-Threaded-Arbor,-1-fdsh-2''/Detail.bok
I'd face the arbor flange side of the nut first and saw a slot so it
could be removed if it stays in the chuck. Or leave a hex flange on
the nut.

BTW I have been looking around at the spin indexers: Somebody on
another forum posted pictures of the indexer which he adapted for ER40
collets! I thought it was a particularly smart move but could not find
a description of how he did it.
Michael Koblic,

Why bother unless you already have the ER collets? 5C collets are as
cheap as any other and are the standard for square and hex collet
blocks, end mill grinding fixtures etc.
http://www.micro-machine-shop.com/Co...tm#5C_fixtures
Those are fine for cross-drilling a shaft or milling a square or hex
head.

You could pick a few appropriate sizes for your rod stock and collets,
you don't need a full set. I chose 1/2" and 1" for expensive metal
like O-1, 12L14, 303, 4142 etc.

jsw