Since the Sweet 16 is basically a free motion quilting machine, you move the fabric rather than moving the machine. So, how do you hold a ruler on the fabric and move the fabric at the same time? I would think it would be easier to draw the designs on the fabric and just FMQ. If you want to learn how to FMQ designs like feathers, etc., check out Harriet Hargraves Heirloom quilting book.