If it is a cutting problem, make sure you are standing straight over your fabric and looking straight down. also make sure the blade is screwed in tightly if it is wobbably (sp?) at all you will be off on your cut. If it is a sewing problem, make sure you use a machine gulde that screws into your deck of your machine, or at least a foot that has a qtr inch side to it. Keep trying...Use bigger pieces they then to be more forgiving. I just spent all afternoon picking out stiches on 6 lengths of fabric, because I didn't follow my own advice and put the fabric guilde on the machine. I guess I'm a slow learner too.