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Product Description
This is a single chain of 15 cubes, joined corner-to-corner, and bent into a circle. The chain interlocks with itself, so if you follow the chain, it will make two revolutions before you return to your starting cube.
I created a single cube, and triangulated its surface, in Mathematica. I then used OpenSCAD to create a straight chain of them, and to then wrap that chain into a circle.