Impossible 3D-printed bolt and nut

grabcad

Introducing the "Impossible Bolt and Nut," a fun two-part assembly with working threads where a nut appears trapped on a bolt. A cleverly designed air gap between them allows easy removal of the nut from the bolt's head. Multiple STL files are provided to suit various 3D printers, ensuring successful printing. However, disable the STL heal function in your slicing software to prevent it from removing the gap during print. After 3D-printing, carefully use a thin knife to break the gap and remove the nut without cutting yourself! Enjoy this clever design and share your results! Check out our video for more details: http://youtu.be/GbDMlNjrUM4