Single Polyhedron Symmetric Spheroform Tetrahedron

Spheroform with Tetrahedral Symmetry

Inspired by Angus one Friday night [Ultimate Solids of Constant Width](https://www.youtube.com/watch?v=fOojOfpcPZM). I thought I would combine the ideas of tetrahedral symmetry and a low poly/fast OpenSCAD implementation.

Third attempt following OpenSCAD speed optimisation to it's ultimate conclusion - a single polyhedron. Not sure how I feel about that...

[More information and Proof](http://www.xtalgrafix.com/Spheroform2.htm)