If you do not want this
To protect your table saw fence from that ulgy blade mark, set the fence about .125” from the blade, Drill a hole, thread it and install a machine screw finger tight. This will effectively stop you from sliding the fence by accident into a spinning saw blade. Should you want the fence on the other side of the blade just unscrew the stop. The reason for offering this tip is I did it when I was young and more careless. I did not like the terrible noise or the cut up fence. Also I went to look at used unisaw, darned if the fence did not 2 blade gouges at different heights. That is my Bies in the picture. I taped on piece of paper for the illustration.
-- I love the smell of sawdust in the morning. Vernon