Table saws are ill equipped to rip cut 30° joints required for a triangular box because the blade will only tilt to 45°. The solution is to cut with the wood standing up alongside the fence with the blade set at a 60° angle but that's not ideal because as the cut is made there's nothing left to support the wood and it falls down into the blade.
This new jig allows the woodworker to clamp the box part in place so it is carefully carried through the cut. The results are shown in a practice box.
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