Octagonal trioprism

The octagonal trioprism or ottip is a convex uniform trioprism that consists of 24 octagonal duoprismatic prisms.

This polypeton can be alternated into a square trioantiprism, although it cannot be made uniform. 8 of the octagons can also be alternated into long rectangles to create a square duoprismatic-square prismantiprismoid, 64 of the octagonal prisms can also be edge-alternated to create a square prismatic-square prismatic prismantiprismoid and 16 of the octagonal duoprisms can also be edge-alternated to create a square-square duoprismatic prismantiprismoid, which are nonuniform.

Vertex coordinates
The vertices of an octagonal trioprism of edge length 1 are given by:
 * (±1/2, ±(1+$\sqrt{12+6√2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2),
 * (±1/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±(1+$\sqrt{2}$)/2, ±1/2),
 * (±1/2, ±(1+$\sqrt{2}$)/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±1/2, ±(1+$\sqrt{2}$)/2),
 * (±1/2, ±(1+$\sqrt{2}$)/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2),
 * (±(1+$\sqrt{2}$)/2, ±1/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2),
 * (±(1+$\sqrt{2}$)/2, ±1/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±(1+$\sqrt{2}$)/2, ±1/2),
 * (±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±1/2, ±(1+$\sqrt{2}$)/2),
 * (±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±1/2).