Tight chains of triangular bipyramids @EdoTimmermans
Tight chains of triangular bipyramids  @EdoTimmermans
Uploaded June 2014 | Updated September 2026, 2 weeks ago
The chain with the smallest dipyramids is the tightest. The largest has more room to move (relatively), there the bottom of each dipyramid can move below the center of the one below it, so these are not usable for a tower build shown with the smallest size ones at the end. A tutorial:
youtube.com/watch?v=n_B0nSaEYRQ
Tight chains of triangular bipyramidsTrefoil knot made of magnets, famous from M.C. Eschers knot drawingsIcosahedra rhombic lattice, magnets tutorialSchoens I-WP surface, disphenoid cell
Edo Timmermans (geometric art) |

Tight chains of triangular bipyramids

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