If you have read my blog, you will know that I am just getting into box making and I’m starting to learn new joinery techniques. I wanted to try box joints, so I came up with this jig for my router table. It was pretty simple to make. The jig is made out of just one piece of MDF. If you can’t tell, the MDF is in an L shape. The L hangs over the side of the table as a guide. It also has the most important part which is the slot for the router bit. So here is how it works. The workpiece is clamped on the back of the jig with the drawn square on the workpiece matched to the slot for the router bit. A miter gauge is then used to push it through. I am very happy with it and it works great.