Impossible 3D-printed bolt and nut

cults3d

The "Impossible Bolt and Nut" is an entertaining 3D-printable two-part assembly with a functioning thread, where a nut is stuck on a bolt. A single STL file contains the nut positioned at a slight distance from the bolt's head. The gap between both is sized to create a "skipped" layer, resulting in a fracture plane so that the nut can be removed from the bolt's head. We have supplied multiple STL files scaled to commonly available 3D-print heights. Please select the one that most closely fits your desired print height. It is possible to scale the STL up or down with successful results. Please refer to the instructions for more information on how to 3D-print this bolt and nut. Additionally, note that some slicing software and settings might interpret the air gap as an STL defect and remove the gap during print. You will need to disable the STL heal function. Download the STL files and 3D-print your own! VIDEOhttp://youtu.be/GbDMlNjrUM4 The Gap There is a gap between the nut and the bolt's head. The size has been adjusted so that the slicing software will "skip" a layer. This air gap should be small enough for the nut's first layer to adhere to the bolt's head, but still large enough for them to separate easily. We have adjusted this gap so that it fits 3D-prints of PLA and ABS. REMOVING THE NUT FROM THE BOLT Make sure you don't cut yourself! Use a thin knife blade and insert it between the bolt's head and the nut. Wiggle it and move it around the bolt until you can feel that the majority of the gap is broken free. Remove the knife and carefully unscrew the nut. CHOOSE THE CORRECT STL FILE We have provided multiple STL files in this thing to fit different 3D printer Z-heights. Select the STL which fits your 3D printer and scale it slightly if needed. The key is not to affect the gap too much when scaling the bolt. By Creative Tools http://Creative-Tools.com http://google.com/+CreativetoolsSe http://twitter.com/CreativeTools http://facebook.com/creativetools http://youtube.com/creativetools