Shapers who else has one?

[Sunset Machine]

A disk of the pitch circle (minus, I believe, one wire diameter) is fastened to the arbor and the wire, wrapped around the disk, is held taut and stationary. As the table moves, the disk turns and rotates the blank.

Generating involutes with a shaper:
http://myweb.tiscali.co.uk/remark/pages/...huck1.html
(While you're there, check out his Geochuck under "projects".)

I wonder if a properly timed, off-center disk would generate mitre gears?