Attach the 1/2” base plate to the 3/4” fence piece. Add glue if you want and then use 2 clamps to hold together the pieces. The base fits so the cut outs match up and in the bottom rabbet. The rabbets ...

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.