Karmagami Kaleidocycle
Get one here:
From Fun in Motion: BUY NOW: Karmagami Fidget
Similar items here:
From Amazon: BUY NOW: Kaleidocycle Tetrahedrons
Or make your own: More Kaleidocycles
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armagami Kaleidocycle: a ring of six linked tetrahedra. The hinged connections allow the ring to be rotated through its center, and the interesting geometry results in a cycle of four patterns. A fun math fidget- this one produced by Fun in Motion Toys
3D Print Kaleidocycle
Get this beautiful 3D Print here:
From Etsy: BUY NOW: Kaleidocycle Fidget
Or print it yourself: Kaleidocycle print files
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3D Print Kaleidocycle: this kinetic manipulation fidget toy is comprised of six hinges such that it can twist inwards continuously. Amazingly this item is 3D “printed-in-place”, which means it comes off the printer already assembled with movable links and ensures the color gradient is continuous across the joints. Designed and engineered by maker Enrique Coiras.
Beaded Kaleidocycle
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From Etsy: BUY NOW: Beadwork Kaleidocycle
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Beaded Kaleidocycle: based on a geometry of six linked tetrahedra with hinged connections that allow the ring to be rotated through its center. Intricate beadwork meets math in this kinetic artwork by Erin Peña.
Square Kaleidocycle
This book has many versions of kaliedocycles: cut out and glue to make many interesting mathematical objects.
From Amazon: BUY NOW: MC Escher Kaleidocyles
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Square Kaleidocycle: a ring of eight linked tetrahedra. The hinged connections allow the ring to be rotated through its center. The faces of the pyramids are decorated with the famous tessellation work of MC Escher, a pattern of interlocking lizards. Note that as the kaleidocycle is rotated the lizards at the center change through each of four colors. Made from card stock, this kaleidocycle was cut and assembled from a book by mathematicians Doris Schattschneider and Wallace Walker.