Before opening up the half square triangle, line up the sewn line on the desired marking on the ruler. We are trimming these HST's to 3 1/2 inches. So I line up the seam with the 3 1/2 inch marking.

Nancy shows how to arrange simple half-square triangles into beautiful row-by-row designs. Nancy explains how to arrange simple half-square triangles into beautiful row-by-row designs. Learn how ...