It's time to make some sawdust and spread some glue to create the walnut top. Create is a good word to use when woodworking, because, unlike steel, you aren't just welding and grinding and pounding on it with a hammer. Wood has a mind of its own, which varies from cut to cut, species to species.
Because there is a lifetime of things to learn about working with wood, we'll cover the basic stuff, emphasizing how it relates to American Walnut, our chosen species.