About this 3D model
This is just a frivolous imitation of a 45-RPM phonograph record, which I built to take advantage of the way my Solido SD300 builds 3D parts out of shiny PVC. But it could also work in ABS if you dip it in acetone to make it shiny! More pictures at http://mysd300.blogspot.com/2012/02/classic-45-vinyl.html