Not all blocks and seams are going to nest. To match up your points, put a straight pin in thru the back of one block at the very point of the star tip. Then put the pin thru the same spot in the front of the block you are joining to it. when you slide both blocks to the bottom of the pin, they will be right sides together, with the points aligning. Pin the block securely, then remove the alignment pin. Sew, staying just to the outside edge of your point. If you feel that the seam is way too bulky where the points meet, iron the seam open. As far as the straight seams, I would turn alternate blocks 90 degrees.
Last edited by PaperPrincess; 02-10-2017 at 09:46 AM.