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This simple curve-jig is extremely easy to build and use, and will ensure that when you glue up two opposing surfaces, they will match exactly.

The first step is to make a pattern that duplicates the curve you need to glue up. If you have some lattitude on how the curve needs to look, creating a paper pattern or a drawing of the curve-jig material will suffice.

In the project that I used the curve-jig for, I had to use one of the project parts I needed to glue together. In this case, I had to make sure that one side of the curve-jig matched exactly the part I had already created. To do this, I scribed a line on the curve-jig material that matched the curve. Using the bandsaw, I sawed on the line and separated the two pieces of the cureve-jig. (Do not worry about a wobble here and there. The wood shim will correct this error.) I then placed one of my wood strips between part I had already created and the matching jig piece. At this point, use the blocks to glue the wood strip to the jig material thereby creating the first half of the jig. Next, clamp the completed jig part, the 2nd wood strip and the 2nd jig part together to create the opposing side. Use the blocks to glue the 2nd strip to the opposing curve-jig half and the jig is complete.

The curve-jig works great on a router table. Before taking your project to the router table, make sure the cureve-jig is secured to your project material and will not move. Using a sander, file, rasp, etc; remove as much excess material from the project material as possible. If you can get it less than 1/16th of an inch, great. This will greatly decrease the possibility of material chipping out while using the router table. I found this to be a real problem using a wood such as mahogany. It will chip easily.