Circle Guide for Plunge Routers - 2 ¼ to 6 ¹⁵/₁₆ inches (57,15mm to 176,21mm)

I designed a circle guide/jig for plunge routers. It can be a useful for speaker building. The design is based of the Jasper model 200.

Simply mount the guide/jig on your plunge router and mark out the center on the material with a pen. Then drill a small hole in the center. Stick a pin/cylider/spike etc. in the desired diameter on the jig and place the pin in the drilled hole.

I have not printed this out yet, so let me know how it works out.