I designed a bolt with a Reuleaux triangle shaft that turns inside a square nut.
It’s a strange bit of geometry that actually works—thanks to the constant-width shape.
https://www.printables.com/model/1278549-impossible-reuleaux-triangle-bolt-with-square-nut
#3DPrinting #ReuleauxTriangle #WeirdMechanisms #Geometry
Impossible Reuleaux Triangle Bolt with Square Nut & Clicker Mechanism by orangebird | Download free STL model | Printables.com
Features a Reuleaux triangle-shaped bolt with a smoothly threading square nut and a satisfying clicker mechanism | Download free 3D printable STL models
Iakov Davydov