Looks like it should work a lot like the Logan 650 I have. The blade is in the handle mount and the rail hinges at the front so you can slip the mat board and backer under it. The back stop is set for the border width and the side stop holds the mat while cutting. The thumbscrew stops are limits so you can set up a cut and repeat several without having to mark the matboard. It looks like the cut is made drawing towards the sidestop that is mounted on the backstop. In other words you will be standing at the far end in the picture and pulling the handle towards you. You will need to be sure and hold the mat against the back while cutting to keep the cut from pulling out of square.