Truncated hexagonal duoprism

The truncated hexagonal duoprism or tahiddip is a convex isogonal polychoron that consists of 12 truncated hexagonal prisms and 36 tetragonal disphenoids. 1 tetragonal disphenoid and 3 truncated hexagonal prisms join at each vertex. It can be formed by truncating the hexagonal duoprism.

It can also be obtained as the convex hull of 2 semi-uniform hexagonal-dodecagonal duoprisms chosen such that the dodecagonal and hexagonal prisms have the same circumradius. if the dodecagons of this duoprism have edge length 1, the hexagons have edge length $$\frac{3+2\sqrt3}{3} ≈ 2.15470$$.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is $$\frac{\sqrt6}{2}$$ ≈ 1.22474.