If you need to check if something is at or about the golden ratio. If you don’t know what that is you don’t need these.
Cut the inner holes first then the outer outlines.
As you can see, I’ve done these in two different materials so they should work in any of the 1/8"
The basic shapes came from plans offered by King’s fine woodworking but I had to completely rework them for laser cutting.
I have included the Fusion file as well as an SVG so if you need to tweak the hole size or something.
I used 1/4" Chicago screws from Amazon.
golden ratio calipers.zip (597.8 KB)