Square Up Your Block
Continuing on with my series on How to make a Pinwheel Table Topper, I want to show you how to square up a half square triangle. I have taken you through the steps to sew your light and dark block together. You have cut your triangles apart and pressed. Now it is time to make your block the most accurate size it can be.
Lay your block down onto a flat cutting surface. Lay your six inch square ruler on top of the block and line the angle line up with the seam of the block. Pull the square to where your marking is showing on the block. In this pattern, I want my block to be 4 1/2 inches so I pull the 4 1/2 mark up and make a cut to the right and top of my block. Spin the block around and match the angle mark to the seam. Put the 4 1/2 inch mark on the bottom of the square. You will again cut the right side and the top. There might only be slivers of fabric to cut but these make the difference in getting points to match when you put your blocks together.
