Octagonal-truncated cubic duoprism

The octagonal-truncated cubic duoprism or otic is a convex uniform duoprism that consists of 8 truncated cubic prisms, 6 octagonal duoprisms, and 8 triangular-octagonal duoprisms. Each vertex joins 2 truncated cubic prisms, 1 triangular-octagonal duoprism, and 2 octagonal duoprisms.

The octagonal-truncated cubic duoprism can be vertex-inscribed into a small rhombated penteract.

Vertex coordinates
The vertices of an octagonal-truncated cubic duoprism of edge length 1 are given by all permutations of the last three coordinates of:
 * $$\left(±\frac12,\,±\frac{1+\sqrt2}2,\,±\frac{1+\sqrt2}2,\,±\frac{1+\sqrt2}2,\,±\frac12\right),$$
 * $$\left(±\frac{1+\sqrt2}2,\,±\frac12,\,±\frac{1+\sqrt2}2,\,±\frac{1+\sqrt2}2,\,±\frac12\right).$$

Representations
An octagonal-truncated cubic duoprism has the following Coxeter diagrams:
 * x8o x4x3o (full symmetry)
 * x4x x4x3o (octagons as ditetragons)