Rolling Tetrahedron

Designer

Pi_Guy

Designer relation

Ingen

Kategori

Education

Licens

Standard Digital File License

$ ↺

Se platformens konkrete vilkår.

Designer commercial

MakerWorld Commercial License

Først set

2026-07-14 16:37

Sidst set

2026-07-14 16:37

Tags

triangle roll rolling reuleaux Reuleaux tetrahedron tetrahedron geometry geometric ball prism pyramid meissner fidget Toy math physics learn experiment test 3D shape model

Beskrivelse

Download my newest model here! ;) https://makerworld.com/en/models/2964414 Reuleaux Tetrahedron (50 mm) The Reuleaux tetrahedron is a fascinating geometric shape that rolls in a surprisingly smooth and consistent way when placed between two flat surfaces. Although its edges are not perfectly constant width, they come close enough to fool your intuition — which is exactly what makes it so fun to play with. This shape is formed from the intersection of four spheres, giving it a unique rolling motion that feels unusual yet steady. Watching it move is oddly satisfying and a great conversation starter for anyone interested in geometry, engineering, or mechanical motion. Assembly: Push the triangular connector into place between the two halves. The fit is intentionally tight, so some force may be required. This tight fit keeps the parts properly aligned and is essential for achieving the smooth rolling behavior. Boost Me (for free) Models like this are not easy to make!😅 The best way to support me is be pressing this button! Your support helps me keep the models coming. :) Boost Membership If you’d like to support me, consider joining my Support Tier Membership! For just $3 a month, you’ll be making a huge impact on my work. Your contributions help me keep creating, improving, and innovating! 😁 Join No AI is used in this model. All of my models are made by me in Fusion 360.