Part of a <a href="https://en.wikipedia.org/wiki/bitruncated_cubic_honeycomb" class="extiw" title="en:bitruncated cubic honeycomb">bitruncated cubic honeycomb</a> - a space filling tesselation of <a href="https://en.wikipedia.org/wiki/cubes" class="extiw" title="en:cubes">en:cubes</a>, <a href="https://en.wikipedia.org/wiki/truncated_cuboctahedron" class="extiw" title="en:truncated cuboctahedron">truncated cuboctahedra</a>, <a href="https://en.wikipedia.org/wiki/truncated_octahedron" class="extiw" title="en:truncated octahedron">truncated octahedra</a>.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
self-made, Inkscape