Unscrew the plastic base plate (also called a shoe, running plate, or sub-base) to remove it from the wood router. Rip a long strip of plywood the same width as the baseplate. Then use the router base ...
For an upcoming project, we needed a large, 1-3/4” thick piece of solid black walnut. Wood like this isn’t something you’ll find just anywhere, and when found, it’s rarely in the dimension you need.