Now I'm going to wrap up my LeMoyne Star Quilt Block process. This is where the sewing starts to get easy, but you do need to pay attention to how you are pinning things together. After the last post, the idea was to repeat the process documented in the first two entries to create a mirror image set of triangles.

Step 11: After Both Sets of Triangles Have Been Pieced
This is what you should be looking at after the second set of triangles has been pieced. Most everything from here on out should be fairly straightforward. The most critical parts of the next steps involves making sure that you are pinning pieces so that the right lines line up correctly.

Step 12: Pinning Triangles to Form Squares
The pinning process here involves two steps -- securing the pieces together and making sure that the edge to be sewn is aligned correctly. For this seam, the most important thing to remember is that you want the place where the two different fabrics meet to line up as perfectly on both sides as it can. Believe it or not, this junction is actually more important than the center, because your eye tends to be drawn to places where it sees transition, and it will tend to make assumptions about what should be going on with the center of the square that wash out mistakes you make there.
To help you get things secured, the first thing to do is to pin the seams that make the "V" where the different colored fabrics are joined. Secure the one that is the farthest away from the seam you're going to sew, first. To do this, you really want the pin to go down through the center of the seam on the top piece and out through the center of the seam on the bottom piece, thus, aligning the seams. After that, you'll do the same thing for the seam closest to the edge you are going to seam together.
Finally, you're going to pin the edge you want to seam. Start with the place where the two fabrics join and make sure that it lines up on both the top and bottom triangle. Trust me -- even if other things aren't perfect, this is the thing you want to have line up correctly. After that, smooth things out from the middle and line up the points on either side as best you can and pin.

Step 13: The Finished Squares
Once you've done the pinning and sewed the four sets of triangles together and pressed them (press the seams out just like you did for the first part of the process) you should have something that looks like the picture above when you lay the pieces out on your table. Now you have 4 blocks. The rest of the seams should be pretty obvious.

Step 14: Pinning Squares to Form Rectangles
The pinning technique is similar to what you did for piecing the triangles into squares. Use those internal seams to help secure the two squares together. Then carefully line up the places where the fabric joins occur on the edge you are going to sew together. Do your best to make the center point seams line up on the top and bottom as well before worrying about pinning the corner where the background fabrics join.

Step 15: The Finished Rectangles
After pressing out the pieces (seams out) you now have two large rectangles -- you're one more seam away from a finished block.

Step 16: Pinning Rectangles to Form the Final Square
Yep, more precision pinning is required for this process. I didn't worry as much about securing the inner seams at this point, but you should feel free to pin down anything that makes you happy. For this piecing, I did start in the center and made sure the center lines came together correctly on the top and bottom pieces. Then I moved out from the center on either side and made sure the seams where the background and main fabrics joined were aligned before securing the outer corners.

The Third Finished Block
One more seam from my trusty sewing machine and another pressing event with my iron, and you have a finished block.
See, not so hard. And a very pleasing result!