Here are a couple of pictures of a radius jig I made, I figured I'd put these up on here for your viewing pleasure. When I started out building the most perplexing thing I had to deal with was how I was going to put an accurate radius on the fingerboard with out spending hrs. at it with a radius block. After talking to my friend Darrin Huff about a few different ways of doing it this is what I came up with. It's fully adjustable and works like a dream. I just double stick tape the neck or fingerboard to the swing plate and go to town. Also the swing plate is not in line with the belt so that it uses the whole width of the belt instead of a narrow strip of it. But for those of you having trouble finding pictures on what some people do here are a couple, I hope this helps.