Try placing a few fingers off the side of the ruler. If you are a "rightie" and hold your ruler with your left hand, place your "pinkie" and ring finger on the fabric, not on the ruler. Line up the ruler, then place your hand on the lower third of the ruler. Cut to that point, leaving the rotary cutter in the fabric, touching the ruler. Stop, and move your hand up to the middle of the ruler. When you get to the level of your left hand, stop, move your hand near the top of the ruler, then cut to the end. Hope this helps.