About this 3D model

Concept by Colin J. Roberts and Paul J. Roberts. Please see their website for more information and history: http://www.pjroberts.com/sphericon/index.phpSome have two positions. In the picture see the amusing paths that these objects (the ones without "Stop" in the filename) will roll along.3D Modeled by Chris K. PalmerPrinted by Jeff Rutzky. See his model in action here: http://www.vimeo.com/16985828I uploaded these with Paul's permission to commemorate the arrival of my Cupcake CNC!