First and foremost the way in which you sew could be The main reason for this. Keep the cloth taut when you sew by preserving your palms on The material in front and also to the back of the needle. For demonstration uses During this Instructable I'll use a classic http://brookstiscm.affiliatblogger.com/46107759/the-smart-trick-of-colorado-sebo-vacuums-that-no-one-is-discussing