Steve B wrote:
Anyone have any idea where I can get a ring that has the 360 degrees marked
on it? I need one to make a miter base. It needs to be about 12" in
diameter, and if made out of metal, that would be nice. Is there any
companies that make these? What is the precise name for them?

Save your self some trouble, and go he

http://www.incompetech.com/beta/plainGraphPaper/

you can print out a number of useful graphs/grids, and it's easy as pie.
Polar Graph paper is around half way down the page, and configurable to
print as many lines as you may like.

er
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