Heptagonal duotruncatoprism

The heptagonal duotruncatoprism or hedtep is a convex isogonal polychoron and the sixth member of the duotruncatoprism family. It consists of 14 diheptagonal prisms, 49 rectangular trapezoprisms, 98 wedges, and 49 tetragonal disphenoids. 2 diheptagonal prisms, 2 rectangular trapezoprisms, 3 wedges, and 1 tetragonal disphenoids join at each vertex. It can be obtained as the convex hull of two orthogonal heptagonal-diheptagonal duoprisms whose diheptagonal prism cells have a smaller circumradius than their heptagonal prisms. However, it cannot be made uniform.