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.htmlBuild record spiral.stl using black material, and (optionally) build label.stl in white or brightly-colored material.I posted a YouTube video that shows my model being built and how well (badly) it plays on a turntable.http://www.youtube.com/watch?v=WHHUFu7wgH0