Star Brite - Page 2 Four Patch Sub Unit On wrong side of lightest fabric, draw diagonal line with the marking tool of your choice. Layer 2C and 4C, right side to right side. Sew 1/4" seam on each side of marked line; cut apart on marked line. Press triangles open to make pieced squares. Assemble Four Patch sub units referring to diagram for placement guide. BLOCK ASSEMBLY Quilt Blocks Index Page