Laser cut radius gauge

A handy little radius gauge for reverse engineering and checking things.

These are based in jimustanguitar's design, but re-done for a laser cutter. I've added the [MAKE:Bromyard](http://www.makebromyard.org.uk/) name across the middle, and added lines under the 6 and 9 for clarity.

One version has the text as editable blocks, the other is pre-exploded for your convenience.

The numbers and letters are on their own engraving layer, obviously.