This used to puzzle me. When you’re making a blind rip or dado that has to stop in the middle of a board, how do you know when to stop sawing? I figured it out a couple of months ago and it’s easy. Push the fence aside so the wood just fits between the fence and the blade. Place the wood so the end of the cut exactly matches the point where the blade emerges from the throat plate. Then clamp a stop block to the fence at the end of the board. Slide the fence over to the proper rip width and make the cut. The stop will automatically end the cut at precisely the right place. If you have a rip that’s longer than the fence, just clamp a temporary extender to the fence.
This tip isn’t just for ripping thick stock. It also works when you’re ripping plywood or any other thin material and you need to stop the cut on the underside where the blade isn’t visible. I’ve also used this tip to cut rabbets in the edges of boards in cases where the rabbet doesn’t continue all the way from end to end. — Travis Larson