Think you're using the wrong words. The shoulders are normally cut with the
piece horizontal. They're the ones that cross the grain and go 'round the
tenon. Cheeks are the ones cut while held vertically in the jig, in a
Cruising back through, and see a reply already. The standard "jig" for
shoulders is, of course the miter gage and cutoff block. If you're
particularly queasy or cutting at weird angles for exceptional precision,
you can use the shaper jigs designed for end grain copes and such, like
this. http://woodworker.com/cgi-bin/FULLPRES.exe?PARTNUMC-188 &
Haven't checked mine against my "new" left tilt groove, but it works great
on the shaper.
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