Best thing would to be to get up off the floor so you can have more control. Perhaps a kitchen counter or a table. Place your cutting board on the flat surface, then look carefully at the marking on the ruler as they rest on the material .Once you are satisfied that the ruler is on straight, place your hand on the ruler firmly with one finger off the edge-the little one- so that it can stop movement of the ruler. Then move your hand up the ruler, then cut fabric as far as the hand hold, then move your hand up the ruler again while staying in contact with the ruler and cut. Do this to the very end of the ruler and your cut will be straight. As you do the cutting begin to realize that you may be putting too much pressure on the ruler with the rotary cutter. Have you body right in front of the cut to see if you can adjust this pressure as it can be the cause of the ruler slide.
Last edited by mcar; 02-07-2013 at 04:42 AM.