Octet Truss Kit, v2
Version 2 of octet truss kit. Increased the snap width to improve edge constraint and overall structural integrity. Added additional spherical "stops" or "spacers" at the ends of each edge to prevent snaps from interfering with one another. Without these improvements, it is impossible to construct a (sturdy) second-level tetrahedron (1 octahedron plus 4 tetrahedra).
Video: https://www.youtube.com/watch?v=-U0oYoSr7v4
Shop: https://www.shapeways.com/shops/reified