31 Great Circle Intersection

Inspired by a challenge on the make Magazine http://blog.makezine.com/2012/11/05/math-monday-even-greater-circle/
I decided to make the model for the intersection of 31 great circles.
This and all my other items can be found on my blog http://msraynsford.blogspot.com/2012/11/project-4-31-great-circles.html