MPCNC nut trap drill guide

This is a drill guide for the nut trap for the MPCNC (Mostly Printed CNC by Allted) I made using the parametric design by GeoDave. I've completely rewritten the SCAD with a number of improvements, like clearer variable naming.

See [my nut trap](https://www.thingiverse.com/thing:3038722) for more info. The same applies for this (i.e. 25mm version, original spacings). Of course, you can customize this in the SCAD file or using the Thingiverse Customizer.

Included are STL and STEP files for the drill guides I used (one with 4.2mm holes and one with 4.8mm holes) for my own reference. I recommend printing both, since you need a top and bottom anyway (see picture), and this way you can decide which one you'll use on top for the drilling.