But if you want to make your own jig you can use a old saw and a sharp chisel to make the blade for your tool, Roy UnderHill has a PDF file on his web site that will show you how to make one.
You can also use the router table, it's tricky set up but Bob and Rick of the RWS show will show you how to. (I don't recall the Episode name/number but you may want to check out the guide below) http://www.routerworkshop.com/epage.htm
A forum community dedicated to router and woodworking professionals and enthusiasts. Come join the discussion about different types of routing and routers, shop safety, finishing, woodworking related topics, styles, tools, scales, reviews, accessories, classifieds, and more!