Goldberg polyhedron I {3,3}, 12/27 truncation

3D Model

This polyhedron is similar to the outer grid of one of the Eden Project domes in Cornwall, UK. It was created using Antiprism’s pol_recip program (www.antiprism.com) which generates the duals of polyhedra. The starting point was a class II, 6v icosahedral geodesic sphere. Once the dual was created, it was truncated above the equator with the help of Excel. If you think of this polyhedron as representing a slice of Earth, then Costa Rica’s capital, San José, would lie a tad north of the truncation plane.