This shopmade router jig, designed by NBC sitcom star Nick Offerman, levels thick slabs to create Nakashima-style tabletops and other unique pieces. The heart of the jig is a trough that guides the router over the workpiece, allowing you to even out the high and low points as much as possible and retain the maximum possible thickness. It works relatively quickly, leaving only a few minutes of sanding left to do. For thicker slabs, Offerman shares a technique for routing flat channels in the bottom to hold the table base and leaving the rest of the bottom surface rough. He also shows how to clean up the sides and sand for a finish.

From Fine Woodworking #222