About this 3D model

I dont't take credits for the model, Just added additional Support so I was able to Print. Took 36h to print, the diameter is about 18 cm. The material is "ABS Glow in the Dark" and about 330 grams. http://youtu.be/jwaCg3VRufI Source from: http://www.georgehart.com/rp/rp.html