Preparing to Cut Setting Circle

Somehow, I beat my Makefile into doing the right thing.  I still have not figured out how to beat this python script into producing text gCode.  At least, I should be able to cut a circle out of a square and cut the lines. 

Here is a test piece of Delrin scrap mounted to a rotary table.  The rotary table has a 3/8-16 threaded hole.  I milled a 3/8" hole in the plastic and tightened a bolt to hold it in place.  I will need to square the workpiece to the x axis to make arithmetic simple.   (Maybe I am complicating this too much for that step.)

This is much smaller than the part that I will cut, but it verifies all parts but the degree text.