In article ,
digitect wrote:

Yes you can. Here's a jig that illustrates a rather complex form of
the adjuster

http://www.woodcentral.com/cgi-bin/readarticle.pl?
dir=jigs&file=articles_436.shtml

although it doesn't explain it.

There's something cool about an article that shows a beautiful walnut jig
being used to make something out of "old dried up, splintery pine scrap",
even if it is just a test piece. :-)