I am making a 30" wide door with a raised panel. I would like to make the panel and top rail arched with a 1" rise. I can calculate the radius for the curve in the rail, but I do not know how much to increase the radius for the panel. Does anyone know how to figure this out? Is it based on the depth of the groove cut by the shaping bit for the panel to slide into?
I cannot use the templates from Sommerfield or the others as they only go up to 22" rail length.