Click a thumbnail to see its larger version and description.
A 3x3x3 truncated on four edges and afterwards extended. The result has four sides but looks like a pressed tetrahedron.
This puzzle is part of the series "Sharp Edges". All modifications of this series are made by truncating an 3x3x3 on its edges. These truncations are not symmetrically as in the octagon regularly. One dimension of the cut goes deeper than the other. The best example to view the cutting depths is "Idiots Windmill" which is in the museum too.
The technical signature (580002000) indicates where to cut the original cube.
Some members of this series are made solely by truncating. Others receive additional extensions to "delete" some of the remaining faces.
Edge length: 128 mm (short)
Edge length: 162 mm (long)
Weight: 340 grams
Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Minh Thang Vo.
This puzzle can be found in collections of these members:
Found a mistake or something missing? Edit it yourself
or contact the moderator