Shop-Made Loose Tenon Jig
Here’s a compact jig that simplifies the process of making mortises with a palm router.
My palm router probably has just as many joinery miles on it as it does for profiling and shaping. Fitted with a straight bit, I can make dadoes, rabbets, grooves — and mortises. The sticking point is coming up with an accurate way to control the router. The solution is to make a jig. I’ve made mortising jigs (or templates) that have ranged from quick one-offs to complex adjustable gadgets. They have all worked. What I dislike is the setup. The jig needs to be clamped in the correct location on the workpiece (which is also clamped in place) prior to every cut. All that clamping and releasing adds up. The jig you see here tackles the issue by working more like a biscuit joiner, or Festool Domino joiner. The router is attached to the jig and used like a hand-held power tool. The router moves forward, back and side to side on a pair of carriages and guide rods. A fence in conjunction with a series of stops controls the location and the size of the mortise. The challenge is making a jig that’s versatile to work on a variety of applications without letting it get too big and cumbersome to use well. In the plans, you’ll see how this jig checks all boxes, plus you'll find out how to integrate the jig into a joinery technique.
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What You Get:
- 11 pages of step-by-step instructions
- 24 full-color illustrations, photos and exploded views
- Materials list & Retail sources for hardware and supplies
- Retail sources for project supplies
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Similar Woodsmith Plans
Imperial Plans
The United States Customary System of Units (USCS or USC), more commonly referred to as the English or Imperial system, is the standard set of units for our plans. It uses inches and feet for measurement. This is the one you probably want if you are in the United States, and it is the one we have traditionally offered on this website.
Metric Plans
The International System of Units (SI), more commonly referred to as the metric system, is the alternative set of units that we have available for some of our plans. It uses millimeters, centimeters, and meters for measurement. This is the one you probably want if you are outside the United States. These plans are provided by our business partner, Australian Woodsmith, and are based on the original Woodsmith plan. However, dimensions and other elements of the plan may vary between the metric and standard versions. Be sure to double-check the plan before building.
Premium Plans
All of the information that you need to build our plans can be found in the standard plan. However, if you want even more granular detail to make your job easier, you should consider our premium plans. These come with additional shop diagrams that we drew when creating the prototypes. Shop drawings are not available for every plan.