I need plans for a router jig to use in carving stool seat tops. The bowl shaped areas will be from 12″-18″ in diameter and about 1″ at the deepest point. I plan to rough out the areas with an arbortech and then finish with a pass or two with the jig.
I found some plans in Nagyszalanczy’s Woodshop Jigs and Fixtures but I’m not sure how to adapt the jig to achieve perfect circles and specific diameters.
Any help would be greatly appreciated!