Thank you to those who have given me some tips! I have a Bernina 170 machine and would love to use the walking foot, however I cannot find any marking as a 1/4" guide. Since the foot is somewhat large I find it hard to sew in an even line. I did a few squares on this little quilt today and can see how useful the walking foot would be. Maybe someone has a thought on this or maybe I'm missing something on the walking foot.