Well I got the job done, with nothing heat treated. I used 3/16" drill
rod, 'cause 1/8" was universally suspected (or deemed) too tight.

The drill rod is dimpled, the holes have an embarrassing amount of skew
(they were _supposed_ to be parallel!), and the whole thing looks like it
was made by Joe the Neanderthal Machinist. But it works!

And while I appreciate the pointers from those who suggested I _spend
money_ doing this -- where's the fun in that? If I wanted to _buy_ stuff
I'd go get an ARF from Brodak (http://www.brodak.com/) and go fly.
Honestly, what do you think I'm here for? To actually get something done
in a timely manner? Jeeze.

--
www.wescottdesign.com