Today we learn more about techniques than making a project, but learning this could help you to create several other projects with this technique. Bob Rosendahl shows how to create sliding dovetails that can be used when making drawers, extension tables or even tissue box covers.
To make sliding dovetails, you will need a ½” dovetail bit at a 14 degree angle. Set your bit in the router and then place a brass insert in the hole to tighten up the space. Next, attach your spacer fence to the router table and adjust it until there is a ½” space between the fence and the bit. To test your spacing, take two pieces of wood, clamp together and run through. When you run out of wood, put the two pieces together flat, like you are splicing two pieces together. If it fits, then your spacing is correct.
Take a different piece of wood, precut, and set up on the router. Using a push stick to hold it in place, run through and cut the first groove. Lift piece and place groove on the fence and run through again for the second groove. Repeat, but this time, you will create an offset groove—that is, you are making a joint that will fit into the next piece. When you are finished with this, mark the side that was against the fence. This will help you remember which sides fit together when you are done.
With another piece of wood the same size, you want to repeat step one. But with this piece, you will put the first piece over the fence and the second piece next to the first piece to cut it. This will create the next offset joint in the second piece, while finishing off the first piece. Then cut your next two grooves in the second piece. Now, fit the pieces together and play with the slide. They should slide together easily, and when put together all the way, should be flush.
Learning how to do this technique can open up many project options to you. You can create drawers, extension tables, or even sliding toys for the kids. Bob told of one person making a chopping block with this technique. He put together several pieces of wood, glued them together and then trimmed off the ends. Another option would be to make a cane, using blocks of wood at an angle. All you need to do is have a square block of wood and using a push stick that has a 45-degree angle cut out, place the wood piece in the angle and cut your grooves. Repeat this process with other pieces and then fit together and glue. Simple. Your options are endless when you can learn this technique! Click here to join the Router Workshop!!