Hinge Slot

Using a Dremel Moto-Saw and a cut-off disc to cut slots in the leading edge of control surfaces is quick, but it’s often difficult to keep the slots in alignment. I find that you can stay perfectly aligned by placing the cut-off disc in a drill press. Use a scrap piece of wood that’s the same thickness as the control surface, and adjust the height of the disc so that it is centered. If you...