Photo 1. Set the taper scale to match the desired amount of taper (in degrees or inches per foot) and lock the hinged arm in place. Mark cutting lines for the taper on the workpiece, set the jig against the saw fence, then set the workpiece into the jig, against the work stop.
Photo 2. Position the fence so the start of the taper line will meet the edge of the saw blade when the jig is fed forward. With the jig well back from the blade, turn on the saw. Pressing the workpiece against the jig, grasp the jig handle and start the cut.
Photo 3. Finish the cut, removing your guide hand from the workpiece well in advance of the completion of the cut. If tapering multiple sides, reposition the workpiece to cut an adjacent face. For four-sided tapers, double the taper setting before cutting the other two faces.