Originally Posted by
cjsews
The best advice I can give is to oversize your squares. Draw a diagonal line from point to point. Sew 1/4 inch on each side of the line. After you cut these apart and press, then trim them to the size needed. Make sure you use a ruler with a 45 degree line that is lined up on your seam. It seems that no matter how carefully I cut and sew my blocks never come out perfect. That is why most quilters will over size and trim down. If your pattern said to cut squats at 3 7/8, cut them 4 inches. That little bit can make a huge difference and save you a lot of frustration
I agree. This is the way I make my HST. Just make sure you 45 degree line is accurate, that you stitch straight on the line. I usually after cut them apart (you will get two HST from the two squares) starch and press them open. Next is to trim and they should be perfect HST. So many quilts you can make with these triangles. Popular pattern is the Chevron.