Most of the cheap router dovetail jigs are not made for material thicker than 3/4". The porter cable guide bushings at home depot for about $30 will definately do the job with jigs. For the circle and star thingy, cut th estar out of something like 1/4 hardboard (Masonite), and attach it on the piece where you want it located (You can use a drop or two of glue, or double sided tape). Next find a circle cutting jig for your router, and cut out a circle with the diameter you want, and fasten it in place around the star. Install one of your new guide bushings in your router, and a straight cutting bit, or a (pattern cutting bit with a guide bearing) and remove the material between the two patterns. Remove your two pattern pieces. You might need to touch things up with a carving knife etc. If you,re looking for strength, and not necessarily a decorative joint, looking into mortise and tenon jointery for your butt joints.
Good luck,
Jeff |