How to cut stopped dadoes on the tablesaw
Mike Pekovich uses a crosscut sled and stopblocks to cut stopped dadoes safely.
Stopped dadoes on the tablesaw
Pekovich uses a crosscut sled for the stopped dadoes in the case sides. In order to register all parts against the same side stop, he cuts half the dadoes so the stopped end is at the front of the sled and the other half so the stopped end is at the back.
Cut stopped at the front
It’s better to stop short. You’ll chisel the end of the dado square later, so it’s OK to stop before hitting the layout line. Over-shooting it a little isn’t the end of the world either, but make sure not to go so far that the dado extends beyond the front edge of the shelf.
Stop and drop. Mark the stop point on the workpiece and slide the sled forward until the mark is aligned with where the tablesaw blade meets the surface (1). With the sled in that position, clamp a stop to the saw at the back of the sled to limit the cut and prevent the sled from moving backward during the plunge cut (2). With the saw running and the workpiece snug to the side stop and the rear fence of the sled, pivot the workpiece down onto the blade (3) and then continue the cut by advancing the sled.
From Fine Woodworking #285