The edge turning rhombic dodecaheron redesigned with two layers of unbandaging.

• Inventor: Eitan Cher
• Mechanism: Jumbling only axis system (based on catalan solid)
• Patents: Unknown
• Producer: 3D printing service
• Year: 2022
• Original Price: $0.00 USD
• Current Price: No Data

The ETRD++ (long form: Edge turning rhombic dodecahedron) has 24 turning axes that go through the edges of the puzzle. It is a jumbling only puzzle with the same axis geometry as the Celtic Cube, but it is also designed with two levels of unbandaging. This liberates the scrambling process, though it eventually does get quite blocked-up. The puzzle turns really well, despite its huge number of pieces. The designer had to implement a mixture of curvy and straight cuts to make room for the unbandaging cuts.
Pieces: 291
Stickers: 316
Edge length: 45 mm
Weight: 231 grams

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