16-2 step prism

The 16-2 step prism is a convex isogonal polychoron and a member of the step prism family. It has 8 rhombic disphenoids and 96 phyllic disphenoids of six kinds as cells, with 26 (2 rhombic and 24 phyllic disphenoids) joining at each vertex.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is 1:$$\frac{\sqrt{10+4\sqrt2+2\sqrt{20+14\sqrt2}}}{2}$$ ≈ 1:2.65867.

Vertex coordinates
Coordinates for the vertices of a 16-2 step prism inscribed in a hexadecagonal duoprism with base lengths a and b are given by: where k is an integer from 0 to 15. If the edge length differences are to be minimized, the ratio of a:b must be equivalent to 1:$$\frac{\sqrt{8+4\sqrt2+2\sqrt{20+14\sqrt2}}}{2}$$ ≈ 1:2.56292.
 * (a*sin(πk/8), a*cos(πk/8), b*sin(πk/4), b*cos(πk/4)),