I want to stich circles. from the middle of my quilt out to the edges, looking as if a stone was thrown into water where the circles get larger as they go outward...probably about an inch apart. I didn't plan on having the circles connected, as in a spiral, but could do that as well. I can't imagine how I can have the stitching even as I go outward because I can't use the presser foot as a guide. Any ideas? Thanks.