"Bill" wrote in message
...

http://www.finewoodworking.com/item/...-of-a-lifetime

I'm not really sure how
to saw a semicircular-arc on the front and rear of the feet:
I was thinking it would be easier if I drilled a small hole/dimple at the
"center" of the circe having the semicircular-arc on its
circumference--then I could build a jig that would allow me to rotate the
piece on my BS.


Okay, assume the problem is to "cut a 3.5" radius arc off the end of a 4 by
4 with a BS (note that 4 by 4s are actually about 3.5" by 3.5"). Assume 1/4"
blade--so the blade is a non-issue.

I tried using my noggin for about 20 minutes and here's what I came up with:

1) Hammer a 3+" nail though a suitably large piece of plywood and clamp that
to the BS table
with the nail vertical and about 3.5" to the right of the cutting edge of
the blade.
2) Hammer 1 or 2 small nails into the side vertically aligned, , and about
3.5" from the end of the 4 by 4.
(the hole left by these nails will not be visible in the project).

3) Now the 4 by 4 can be held and rotated with the meeting point of the
short nails and the workpiece
held flush against the long nail (and the supporting plywood underneath)
through the cut.

Please critique, if you will, my solution to the problem. This fixture/jig
surely represents some of the most out-of-the-box
thinking I have ever done in my brief experience in woodworking (I've a long
way to go, huh? : ) ).

Bill