Router Setup for Edge-Jointing
This method provides a quick and accurate setup for jointing the edges of stock with a router. Make a two-piece jig that consists of an alignment fixture and a fence. The fixture sets the proper spacing of the boards. A single pass of the router shaves a little off each board. The best spacing is about 3/32 in. smaller than the router bit. The fixture also sets the location of the fence. This is accomplished by cutting the two cross pieces the same length as the diameter of your router base.
To use the jig, set the two boards to be jointed on the bench with the alignment fixture between them. Slide the fence against the cross pieces of the fixture, and clamp the boards and fence to the bench. Remove the alignment fixture, and make one pass with the router to joint the two boards.
Once the jig is made and tuned, you can joint two boards in less than a minute. The resulting pieces will mate perfectly.
Jeff Colla, Eden Prairie, Minn.
Fine Woodworking Magazine, December 1995 No. 115