Re: [CAD_CAM_EDM_DRO] Rifle stock

"Indexing head" is another term to look for. For what you are doing you could
make up a jig to hold the full length of the stock between centers and move
the whole jig to cut each section. You will still need a way to rotate the
piece with a motor and position sensor though.
It would be simpler to cut each side separately (ie, first the left, then the
right) but leave areas of the block of material untouched so you have
reference points to re-position the work on the table to cut the next section
and so when you flip the work over it is the correct height from the table
without needing any packing or supports. A strip of angle fixed at the back
of the table will give you a straight edge to butt up against so you will
only have to worry about getting the left/right accurately positioned between
sections.
Engineering. 90% common sense, 10% knowledge. And about 160% jigs, bits of
packing, bits with other bits welded on and a whole lot of other things that
do the job admirably but look like part of a mad max set :) .
cheers.