Originally Posted by
Peckish
Make sure you are keeping your cutter at a 90 degree angle to the board. When my mom started quilting and using rotary cutters, she had a tendency to rotate the cutter as she ran it up the ruler, which angled against the ruler and resulted in a cut that was as much as 1/4" off. Also, if you get "stepping", slow down.
My mother taught me that the cutter holds better to the edge of the ruler if it is tilted (just a little bit if you prefer). Worked for her, works for me. Edie