About this 3D model

In the absence of an easy way to generate a bolt with both a gear-shaped thread and a diameter and thread angle I decided to let the thread script generate something "reasonably metric". The bolts have a diameter of 10cm and thread spacing of 2mm. Rather than gear-shaped (which has a number of mechanical advantages but which I don't have a script to do all the work for me) the threads are triangle shaped. The nut has been scaled up a few percent laterally, which hopefully will make it work with the bolts. If these print, it should be possible to do a lot of the things one does with bolts, screws, and nuts, printably. The script parameters to duplicate bolts are: diameter: 10 units step: 2 units indent: 1 unit Blender can make bolts and screws of any length with those parameters. A slightly larger diameter (10.2 or so) with the same step and indent parameters should create nuts, threadings, etc. Edit: Tweaked the screw's tip a bit: I think it probably would have printed in such a way as to not fit to the nut. (It's possible I haven't fixed the problem that caused the screw cap to fail, but the most obvious problem with that design looks like it wasn't in this model.