A truncated pentagonal dipyramid with a mechanism borrowed from the Dino Dodecahedron.

• Inventor: Linxiao Xu
• Mechanism: Unique
• Patents: Unknown
• Producer: 3D printing service
• Year: 2024
• Original Price: $0.00 USD
• Current Price: No Data

The puzzle has the shape of a pentagonal bifrustum, a pentagonal dipyramid truncated on its tips. The pentagonal faces are slightly pillowed so that all edge pieces are symmetric. Since a pentagonal bifrustum has 12 faces and thus is an (irregular) dodecahedron.
The mechanism closely resembles the Dino Dodecahedron. Among the 15 turning axes, 10 of them allow three stops, the other 5 axes allow two stops. The jumbling angles are approximately 118 degrees and 124 degrees, which are very close to the doctrinaire 120 degrees and thus the jumbling is hardly noticeable. It is therefore a fudged puzzle.
A similar design using the same geometry with curvy cuts and stored cuts was presented along with the Lilac Octahedron in 2022.
The puzzle is SLA-printed by some commercial 3D-printing service.
It is 100% FDM-printable but the inventor was using the model to test this black resin.
Edge length (short): 32 mm
Edge length (long): 47 mm
Height: 75 mm
Weight: 144 grams

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