Sixteen Cell

Projection of a four-dimensional polytope with sixteen cells. This was made using sage worksheet created by Edgar Bering IV in the Mathematical Computing Laboratory as a part of University of Illinois at Chicago. STL was rendered using openSCAD.
This needs to be scaled up, recommended at least 2000%

Printed on Ultimaker2. Rotated on "flat" face (there is no flat outer face) in cura and printed with support material. I broke an edge cutting the support material off so it's currently taped into position.