I’m a power-tool woodworker. Sure I use hand tools for some parts of furniture building, specifically when cutting dovetails. But I doubt you’ll ever catch me with a Bridge City Tool Works VP-60, Veritas router plane or a Lie-Nielsen shoulder plane if I’m trying to complete a project quickly. It’s just not my thing. The jobs completed with those tools, I accomplish with my router and a router jig.
The next time you venture into your shop to work on a project, take a survey of what’s stacked around your shop. I’ll bet you have the material to create a boatload of simple, useful jigs that, when combined with your router, will increase your woodworking abilities. The routing techniques shown in this article are a combination of the correct router bits along with dirt-simple jigs made from leftover pieces from other projects, such as scraps and plywood.
A Square-platform Jig
We all know you can guide your router by placing the router’s base against an edge to make a straight cut, but who wants to calculate the offset of the base each time you go to use it or struggle with clamping requirements? If you use my favorite router jig along with a pattern bit, you have a setup that is a multi-tasker and is as easy as can be to position for accuracy.
That jig I call a square-platform jig. To make the jig, start with two pieces of plywood cut to the same size. Attach the two with glue and a few brads (keep the brads away from the edges), then add a third piece to the front edge to act as a lip – similar to a bench hook – and the jig is ready for work. The key is to keep the edges of the jig straight and square with that third piece, which I call a catch rail.
This jig is best when used for cutting dados for shelves or for creating a dovetailed socket for drawer dividers. Due to its usefulness, I have more than a few of these jigs in my shop made in different sizes and thicknesses for different techniques and for use with different router bits, but my favorite setup is a 1″-thick jig (two pieces of 1/2″ plywood). This thickness is perfect for working with a 3/4″-diameter, top-mount bearing router bit with a 1″ cutting length.
The greatest thing about this jig is the ease of clamping. No longer is it necessary to use more than a single clamp. One clamp holds the jig to the workpiece and does not allow any movement of the jig. When a clamp is positioned at the lower left-hand corner of the jig as shown in the photo below, the jig cannot move away from the workpiece due to the clamp. And the jig cannot slip to the left because the front piece acts as a catch. As long as the clamp is secure, no amount of force will allow a shift in the jig. This makes it easy to clamp and quick to adjust from one work area to the next.
To use this jig, do any layout work, then slide the jig into position, always aligning the jig to the left of the work area because the normal operation of a router pushes the tool to the left (if the jig were set to the right of the work area, it would be a struggle to hold the router firmly against the jig in use). Next, add a clamp keeping a clear path for your router base and allow the pattern-bit bearing to ride along the edge of the jig. With this setup, wherever the jig is, the router bit follows.
Use the Same Jig for Dados
If you’re wondering about hogging out the waste with a straight bit prior to cutting with a dovetail bit, I seldom, if ever, take the time to work this way. My router bits are sharp and able to make this cut without difficulty. If this extra step is important to you, I would mount a 3/4″ bearing on a 1/2″ straight bit so I was always registering off the jig.
How about housed dovetail sockets? The beauty of this jig is that you simply make a first pass with the 3/4″ pattern bit to make the shallow dado. Then follow up with the dovetail bit in a second router, as shown in the opening photo of this article. The entire operation is completed with one clamping setup.
Also, here’s a tip: Create the dovetail slots while your case sides are wider than the final dimension by 1/8″. Once the joinery is complete, trim the extra material from the edges to leave a clean front edge.
Are you wondering why I suggested you keep the brads located away from the edges of the jig? When you nick the jig’s edge – and you will ding it with your router bit spinning – you can simply take a pass at the jointer to straighten the jig’s edge.