Replies

1. 
   byhammerandhand | Apr 20, 2006 02:26am | #1

   How would I approach this?

   If it was small in size and I had the right-sized bit, overlapping circles with a Forstner bit would be easy enough. I would lay out an appropriate sized square (see below) and run the tip of the bit into each corner.

   Otherwise, use a template with plunge router and bushings. You may need to do some "climb cutting" to avoid excessive tear out. I'd probably do the rough cutting with either a straight bit and/or a sabre saw.

   Then if you want, follow up with an ogee bearing bit to get a nice profile.

   In either case, you have some latitude with the geometry, depending upon the esthetics you want.

   Here is an article that may help with design and geometry:
   http://en.wikipedia.org/wiki/Quatrefoil

   Sounds like an intersting project; post pictures when you're done.