I posted this in the general forum not knowing this sub-forum existed. I think I might be living here for quite some time.
I would like to post this circle cutter I built yesterday in hopes others might find something useful as I have from your designs and hard work building jigs.
I'm no luthier nor a very good wood worker but got sick and tired of my Dremel tool wrecking work and being a general PIA so I decided to build a Circle Cutting jig for my Bosch Colt.
I discovered lots of jigs on the web and on this site and liked the simplicity of a wooden jig, but the micro adjustability of some other designs so I combined both worlds. I haven't mounted the Colt router yet but am very happy with how solid it came out.
I used poplar for the base since it is so soft and oak and scrap walnut for the other parts. All the bottom edges are eased to minimize damage t the guitar top and I was able to get the adjustment down to almost zero back lash on the wing nut adjustment so I hope to be able to creep up on some finer detail with rosettes than otherwise possible with a single wing nut adjustment in other designs.
Also the 2 wing nut hold downs really create a stable pin locator. I have yet to figure out to really get the 3/16" pin set solidly as it is just press fit currently.
I haven't cut a circle yet but will later today and let you all know how it works in practice.
Here's a couple of pics.
![[:Y:]](./images/smilies/smiley20.gif "Thumbs Up")
Looks like it will serve you well.