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A hexagonal prism 3x3x3 truncated down into cylindrical shape.
This can be viewed as an "axised" cylindrical 3x3x3. In the middle of the circular side there is not a face of the 3x3x3 but a corner. The builder made it by building a hexagonal prism 3x3x3 and truncating it into this cylindrical shape.
In 2008 Adam Cowan offered STL-files (CAD-files in printable format) for this modification of a 3x3x3 but no sample was subsequently published. Claus Wenicker made a sample but never revealed it until Mr. Perez published his work in 2011.
Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann.
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