The "Hopeless bolt and nut" is an enjoyable 3D-printable two-part assembly with a functioning thread, where a nut is trapped on a bolt.
The single STL file includes the nut set at a little distance from the bolt's head. The opening between both is sized to create a "jumped" layer thereby making a break plane so the nut can be removed from bolt's head.
we've provided several STL files scaled to generally available 3D-print heights. Please select the one that closest fits your desired print height. It's possible to scale the STL down or upward with successful results.
Please see directions to find out more on what steps to take to to 3D-print this bolt and nut. Additionally note that settings and some slitting applications could interpret the air gap as an STL deficiency and remove the opening during print. You may need to disable the STL fix function.
Download the STL files and 3D-print your own! :)
There's a gap between the nut and the bolt's head. The size is fixed so that the slitting applications will "jump" a layer.
This air gap should be small enough for the nut's first layer to stick to the bolt's head, but still big enough for them to split readily.
We fixed this opening so that it fits 3D-prints of PLA and ABS.
REMOVING THE NUT FROM THE BOLT
Make sure you do not cut yourself! Use a thin knife blad and fit it between the nut and the bolt's head. Wiggle it than the bulk of the opening is busted free until you can feel and transfer it around the bolt.
Remove the knife and carefully unscrew the nut.
SELECT THE RIGHT STL FILE
We supplied several STL files in this matter to fit distinct 3D printer Z-heights. Select the STL which matches your 3D printer if desired and scale it somewhat. The significant matter isn't to change the opening too the bolt.