Drill guide

I needed a quick drilling guide, and as I already had printed out Lenboks Router attachment for rotary tool (https://www.thingiverse.com/thing:17105) I figured I could give it additional use.

The example is a 5mm guide, but it serves to show the general idea. There are 2 templates as well, one with a 19-2 thread, and the other with an 18.5. The 19-2 fits into the base, but is SUPER tight, needing a wrench to fully insert. The 18.5 can be inserted with your fingers.

Both templates are generated with mike_mattala's awesome Nut-Job customizer (https://www.thingiverse.com/thing:193647) so really all I did here was have an idea and add a hole, but hopefully both or either can be useful.

Adding the hole is pretty simple in whatever editor you want to use; the MS windows 3d builder can even manage it.

Ideally I'd write and propose an addition to the existing customizer but don't know how at the moment :)