I made these virtual models using Stella 4d, which you can try for yourself, for free, at http://www.software3d.com/Stella.php.
A Polyhedron Formed by Repeatedly Stellating the Triakis Octahedron, Along With Its Dual
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I made these virtual models using Stella 4d, which you can try for yourself, for free, at http://www.software3d.com/Stella.php.
I made this three-part compound using Stella 4d (available here) to repeatedly tetstell a truncated octahedron.