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A two dimensional version of the Radiolarian 3 or a bandaged variant of the Sirius.

The Arecibo originated in a collaboration with Vladi Delimollov. Basically he made the original design with the idea of having a two dimensional Radiolarian 3 or Bauhinia Dodecahedron 2, but using a different mechanism that he wanted to test to see if it was possible.
The creator liked the design and decided to try it himself but using his own mechanism. The puzzle has 2 intersecting circles with 120 turns and a deep intersection, and the name was given by Vladi in honour of the famous radio telescope in Puerto Rico.
Curiously, this puzzle can be understood as a "bandaged" version of Dmitry Andreev's Sirius, which has turns at 60. See the seaprate entry.
The inventor uses the pseudonym "El Cubitero".
Printed in PETG plastic with an Ender 3
Thickness: 11 mm
Diameter (of circles): 64 mm



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