TOPICS
Search

Cube 6-Compound


Cube6Compounds

Cube 6-compounds can be constructed in a number of attractive forms. A first (left figures) is obtained by combining six cubes, each rotated by 1/6 of a turn about the line joining the centroids of opposite faces of an initial cube. A second compound, illustrated at right, is obtained by combining six cubes, each rotated by 1/8 of a turn about the line joining the centroids of opposite faces of an initial cube.

These compounds are implemented in the Wolfram Language as PolyhedronData[{"CubeSixCompound", n}] for n=1, 2.

Cube6CompoundsAndDuals

These cube 6-compounds are illustrated above together with their octahedron 6-compound duals and common midspheres.

Cube6CompoundsInteriorsAndConvexHulls

For the first compound, the common solid is an unnamed polyhedron illustrated above. E. Weisstein observed on Sep. 21, 2023, that its convex hull is a polyhedral realization of the graph denoted X_(48) by Li et al. (2026). For the second, the common solid is an unnamed solid illustrated above and the convex hull is nonregular solid with the connectivity of the great rhombicuboctahedron.

Cube6-CompoundNetC3

A net for constructing the first compound is illustrated above, where

s_1=sqrt((79)/(784)-(13)/(98sqrt(2)))
(1)
s_2=1/2sqrt(215-152sqrt(2))
(2)
s_3=1/2(3sqrt(2)-4)
(3)
s_4=1/2sqrt(51-36sqrt(2))
(4)
s_5=1/2sqrt(51-36sqrt(2))
(5)
s_6=1/2sqrt(95-64sqrt(2))
(6)
s_7=1/4sqrt(255-180sqrt(2))
(7)
s_8=sqrt(9/8-3/(2sqrt(2)))
(8)
s_9=1/(14)sqrt(15)
(9)
s_(10)=sqrt(7/(16)-1/(2sqrt(2)))
(10)
s_(11)=1/2(2-sqrt(2))
(11)
s_(12)=1/7(3sqrt(2)-2)
(12)
s_(13)=1.
(13)

The hull of this compound has surface area

 S=171sqrt(2)-(1626)/7 approx 9.54,
(14)

compared to S=6 for each of the six constituent cubes.


See also

Cube, Cube-Octahedron Compound, Polyhedron Compound

Explore with Wolfram|Alpha

References

Hart, G. "Compounds of Cubes." https://www.georgehart.com/virtual-polyhedra/compound-cubes-info.html.Li, H.; Ponomarenko, I.; and Zeman, P. "On the Weisfeiler-Leman Dimension of Some Polyhedral Graphs." Elec. J. Combin. 33, No. 3, P3.25, 2026. https://doi.org/10.37236/13936.Verheyen, H. F. Symmetry Orbits. Boston, MA: Birkhäuser, 2007.

Referenced on Wolfram|Alpha

Cube 6-Compound

Cite this as:

Weisstein, Eric W. "Cube 6-Compound." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Cube6-Compound.html

Subject classifications