3030 center drill guide

A trivial little design but this might be useful to anyone making their own panels for a Ratrig V-Core 3 (or any other printer that uses 3030 extrusions).

Put (clamp) the panel in place and then use this thing to drill 2mm pilot holes centered on the 3030 extrusion for the panel retaining screws.

Printing: Use 3-4 shells.

Someone asked for a 2020 version so I've stuck one of those here too.