This morning on This Old House, Tom was using a clampless straight edge to rip and cut dadoes into plywood using handheld tools. I did not catch the episode number, but it is one of the Concord cottage episodes. Of course, because the show airs on PBS, they did not say who the manufacturer is. I wonder if any of you know who makes this straight edge? It looked to be made of extruded aluminum, and had three or four long rubber gaskets on the bottom that keep it from sliding when there's pressure on it, so it did not need to be clamped to the stock being cut. The tool rode on a protruding rail, so it didn't need to be pressed against the edge of the straight edge. It appeared that the router and circular saw were fitted with a special base to ride on the rail. I can neither afford or house a table saw, large router table, or jointer right now, and it seems like this tool would offer a reasonable compromise. I am especially impressed by the rail feature that keeps the tool aligned and riding straight; the clampless feature sounds convenient, but I'm not hell-bent on having it if there's another (more affordable) tool that is comparable. Any information would be appreciated. Thanks!
-AD