Joe Woody Woodpecker wrote about a bunch of esoteric stuff.

You know, I've never even wanted to make any of those things, much less
needed to. My lathe makes duplicates, copiers are an add-on if you
really want one. I find that a ruler, and pencil, and a caliper does
just fine for dupes. My lathe decreases my blood pressure and makes my
wife happy. Programming a machine to do something is enjoyable, it's
coding. Been there, done that.
Dave in Fairfax
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reply-to doesn't work
use:
daveldr at att dot net
American Association of Woodturners
http://www.woodturner.org
Capital Area Woodturners
http://www.capwoodturners.org/