Building box/finger joint jigs has become a bit of a hobby among some woodworkers, like marble machines or complex mouse traps. They are admittedly complicated, but fun to build and really useful tools. I’ve designed several, but this one is my favorite. It will cut any joint configuration you can imagine, without any complicated setup or attachments to swap around. You don’t need a dado set to use it, though using one will speed up the process. It will cut a joint up to 18″ wide, and is compatible with any 10-inch table saw.
The way the jig works is simple: The sliding carriage moves your work piece from position to position, utilizing a lead screw positioner with positive stops every 1/8″. Those stops align with a paper template (included in the plans) with various joint configurations already laid out for you. This, along with the dual cursors, lets you actually see where BOTH sides of your blade will be cutting, eliminating mistakes that come with losing track of which side of a line your kerf will fall on. The cam-activated positioner auto-corrects the carriage’s position, should you attempt to lock it down out of place. You only have to get your cursor CLOSE to the line, and the jig will zero it in for you.
- Deluxe PDF Plans (Dimensions, cut list, drawings, build photos and step by step instructions)
- Dimensions: Inches
- Tools required: Table saw, pneumatic nailer, drill, router
Original Concept Video (and some build tips):
More about our deluxe plans:
Our deluxe project plans are more than just a set of dimensions. They include a comprehensive set of step-by-step instructions with dozens of photos and illustrations to walk you thorough the build.
You will NOT receive a paper plan. You will be sent a link to download a digital PDF document that is compatible with most computers and digital devices. You may print it yourself or take it to a printing service. We do not provide 3D Sketchup models or CNC G-code.
Below are some examples of what our deluxe project plans look like. This plan will be similar.
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