This is an entry in the manipulative mathematics design challenge. It is a cone assembled from sections which illustrate the definitions of a circle, parabola, hyperbola and ellipse. The pieces fit together with two dowels. All can be printed without supports. This is accompanied by the following study modules: http://www.thingiverse.com/thing:183683http://www.thingiverse.com/thing:183882http://www.thingiverse.com/thing:185141