Earlier this week I showed a D4P block I had whipped up for a mug rug. Missy wrote and asked if I would be willing to share a tutorial. Of course! The original Pinterest pin I stole it from is here which includes the math for different size blocks. Sew (4) 5" squares together and spiral the center seam. Use your favorite pencil to mark 2" to the side of each corner, for a total of 8 marks. Without moving the fabric, cut 4 diagonal lines from mark to mark made in the previous photo. You can barely make out the cut lines above - 2 from purple to purple block and 2 from striped to strip. This is the fun step! Move all the triangles one place to the right and rotate the center square a quarter turn. Since my cutting mat is not on my sewing machine table, I place all the bits and parts on a square ruler to move them to the sewing machine. Essentially we are now working with a 9 patch. Sew the 9 parts in to 3 rows and then sew the rows together. Becasue of the angles, you'll need to square up your block. My blocks have been 7.5" unfinished. Hopefully that was clearer than mud but let me know if you have questions and I would love to see what blocks you make :)
