What you're trying to do isn't really a good practice. You need a jointed edge against the fence to safely rip a board. How you get that straight edge varies from straight ripping jigs, to a jointer. I would also mention not only an edge, but a face, reason being if there is a twist in the board, this can cause binding.
But most important, when you're ripping a board if it starts to bind or the motor slows down, STOP the cut, turn off the motor and look at your lumber. Never try to force a board through a cut this is a good way to get hurt.
It is a good practice is to examine a board for straightness, twist and knots before making the cut.
Last edited by DrRobert; 06-29-2020 at 02:50 PM.