I machine pice alot, but nothing I do is exact. I end up doing alot of fudging with the corners. I want to learn to paper pice I have herd it is easier and more persise.I would start one block at a time and then sew them together Quilting is alot like a puzle. I like to start at the top, or bottom.A good tip is to keep you'r sewing mashine on a slow seting. I bet someone might know where a good tutorial is thow!