Acronym  ... 
Name 
cubically truncated rhombic dodecahedron, chamfered octahedron 
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Vertex figure  [3,H^{2}], [h^{4}] 
General of army  (is itself convex) 
Colonel of regiment  (is itself locally convex) 
Dihedral angles
(at margins) 

Confer  rad oct 
External links 
The nonregular hexahedra {(h,H,H)^{2}} have vertex angles h = arccos(1/3) = 70.528779° resp. H = arccos[sqrt(2/3)] = 144.735610°.
Cubical truncation applies to the cubical vertices (vertex inscribed cube) only. Wrt. the rad this produces new triangle faces there. These are then face planes of a cutting oct. – The above transition shows a dynamical mutual scaling of oct and rad. The chamfered oct then is the instance, where all edges happen to have the same length.
Chamfering (or edgeonly beveling – here being applied to the oct) flatens the former edges into new (nonregular hexagonal) faces.
There is a deeper, terminal chamfering of the oct too, which then reduces the original faces to nothing. Then the hexagons will become rhombs and the total figure becomes the rad. – When considering the below provided tegum sum Dynkin symbol, it becomes obvious that this figure also can be seen as a Stott expansion of the rad.
Incidence matrix according to Dynkin symbol
ax3oo4oc&#zx → height = 0 a = (3+2 sqrt(6))/3 = 2.632993 c = 2/sqrt(3) = 1.154701 (tegum sum of aoct and (x,c)sirco) o.3o.4o.  6 *  4 0  4 0 [h^{4}] .o3.o4.o  * 24  1 2  2 1 [3,H^{2}] +++ oo3oo4oo&#x  1 1  24 *  2 0 .x .. ..  0 2  * 24  1 1 +++ ax .. oc&#zx  2 4  4 2  12 * {(h,H,H)^{2}} .x3.o ..  0 3  0 3  * 8 {3}
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