About this 3D model

A parametric ruler which can be used in other designs as a rough guide to sizes. Just use the "use <ruler_100mm.scad" instruction at the top of your project and then call it by using "ruler_mm();" This is provided on a "do anything you like with it" basis except trying to patent it or otherwise restrict its use or prevent it from being freely available.... I wouldn't try to print this! It almost certainly wouldn't work very well. The idea is just to use it to guide your OpenSCAD designs.