Hi Burr,

> Is there a name for the intersection or method you created
> with the two circles for the Dodecahedron? I will be studying
> this a bit and would like to go a little deeper with some
> googleing/wikipedia stuff.

I'm not really aware of any special name for that method... I would call it a kind of "geometric" solution since it is setting up additional geometry to intersect to find the right point.

For more information you might try googling "platonic solids". You'll probably find some other methods that calculate what the various angles have to be for the pieces to meet exactly.

- Michael