Urban Nine Patch Tutorial Materials: Nine Patch Block (1) 2 1/2" x 2 1/2" square (center) (4) 2 1/2" x 3 1/2" rectangle (middle sides) (4) 3 1/2" x 3 1/2" square (corners) Outside curves: (4) 3" x 8 1/2" rectangle (1) 7 1/2" x 8 1/2" rectangle (4) 2" x 8 1/2" rectangle Half Square Triangles: (2) 3 1/4" x 3 1/4" square (2) 3 1/4" x 3 1/4" square Quick Curve Ruler Assemble nine patch as shown above. Make sure to use 1/4 inch seam allowance, nine patch should end up being an 8 1/2" square. Place the Quick Curve Ruler over left side of block, making sure to center block between the dotted reference lines and the left edge sits under the 2 1/2" mark on ruler. Make your cut. Flip block and continue to cut each side of block following previous directions. Stack and place the 3" x 8 1/2" rectangles under ruler, making sure to center between the dotted reference lines and the left side of fabric sits under the 3" mark on ruler. Make your cut. You will end up with two curve piece shapes. The half oval curve piece shapes are for the outsides of the nine patch. Place the outside curve piece about 1/4 - 1/8 in from corner of nine patch. (you don't have to be exact, since we will be squaring the block up) Sew your curve on, repeat for opposite side of block. Press. For this block, I've found it easier to press seams open to eliminate bulk. Place the outside curve piece about 1/4 - 1/8 in from corner of nine patch. Sew your curve on, repeat for opposite side of block. Press. Before squared up. Square up block to an 8" square, centering as well as you can. Place the 7 1/2" x 8 1/2" rectangles under ruler, making sure to center in between the dotted reference lines and the left edge corners of the fabric sits under the curve cut out. Make your cut. Shift ruler to right, making sure to center in between the dotted reference lines and the corners of your first cut, sit under the 4" mark on ruler. Make your cut. Repeat this 3 more times. You will end up with 4 curve pieces. Stack and place the 2" x 8 1/2" rectangles under ruler, making sure to center between the dotted reference lines and the left side of fabric sits under the 3" mark on ruler. Make your cut. Discard fabric on right. Now you have your 3 curves that will make up your outside blocks. Sew middle curve piece on first, make sure the bottom fabric extends about 1/4" past top fabric. Sew. Before ironing sew on outside curve piece to middle curve piece, make sure bottom fabric extends about 1/4" past top fabric. Sew. Iron from back, pressing both seams in same direction. Flip block over and iron on top. Repeat this for all 4 outside blocks. Square up blocks to an 8" x 2 3/4" rectangle, making sure to center the outside seams under the 1/8" marks on the ruler (sample in red circles). Here is a close up sample. Square up right and top side. Flip block and square up other two sides. For the 1/2 square triangles, place your 3 1/4" x 3 1/4" square on top of each other, alternating the colors. Make a pencil, mark from one corner to the other. Stitch on each side of the pencil mark. Cut in half. Press open and square up to a 2 3/4" square. Layout your blocks following diagram and assemble into 3 rows. Press seams open. Make sure to pin on intersections. Sew and press seams open. Repeat for other side. Example of back of block. You will end up with a 12 1/2" Urban Nine Patch block!