nut-trap C-clamp, semi-customizable

thingiverse

This is a customizable C-clamp that uses a nut and screw for the clamping force, much like a "beam clamp" It rounds the inside corners and outer edges to save some material and time with the excellent [Round-Anything](https://github.com/Irev-Dev/Round-Anything) library. Unfortunately, this code is only customizable outside of Thingiverse's OpenSCAD v2015.3.0 customiser. I can't seem to make the code work with here without a segfault. Do your customizations in OpenSCAD. You could use a [customized handle](https://www.thingiverse.com/thing:5569782) on the clamp screw to dress it up. The nut parameter list was inspired by Nophead's NopSCADlib nuts.scad file: https://github.com/nophead/NopSCADlib/blob/master/vitamins/nuts.scad A small, unobtrusive clamp has many uses. 2022-10-16 -- Updated with easier to select nut trap sizes M1.6-M12 & SAE #6-32 to 1"-8 2022-10-17 -- Update with metric sizes up to the giant M36. 2022-10-18 -- Update 5/16-18 screw diameter and nut-aware default dimensions