What Garry & Wayne said x 2. Pay attention to being square,and the plans will get you there. You will be happy with the results. Good luck. Sincerly, Ron.
Eric, I love mine. All the tips above should be helpful. Try wiping down the inside of the clamping device before use. Could be fileing debris clinging to the surfaces. I find tightning the top screw first till blade is firm in clamp...then tightning the lower screw last does the trick for me...