I know this has been discussed here before , but I am too frustrated right now to look for it. When I am sewing 1/2 square triangles and come to the very end of the point.....my machine pulls the fabric to the right, so I get a slight curve. So then my block ends up measuring an 1/8 to 1/4 inch off. I didn't mind when I am making all the blocks; but when I am making a couple for a swap or exchange, I can't send my crappy blocks to some one else. Does anyone have any suggestions to help me out? Thank you, Elaine