Nut Spinners

A couple of things to what a spanner does but smaller.

The main file is spanner.scad which has a thing that should capture a nut and give you a hand spinner to tighten it up and a thing that makes your nut into a wingnut or bolt into a wingbolt.

The support files are metric_sizes.scad and rodsandholes.scad which meed to be in the same folder as the main file.

The stuff at the top of the file is all about getting a nice number of threads to make things easier to print. You put your nozzle diameter and layer_height at the top and it calculates the build width using the rectange+semi circle model. You can put your own build width in if you need to.