Before we get started I want to give you a little more information on the way we are doing our HSTs. There are numerous ways out there to make half square triangles. We actually are going to make 8 blocks at once. Now I gave you the sizes for our project but if you ever want to make them again there is a simple math formula you can use. The other great thing about this method is they come out a little big so we have a little fudge room.
Math Formula: Finished Size (what do you want to end up with) + 7/8" Multiply that by 2. Example: 5" + 7/8" = 5 7/8", 5 7/8"x2 = 11 3/4" So to finish with 5" squares you need to start with 11 3/4" blocks. 7/8 as a decimal is .875 so you can use a calculator to do your math. :)
The first thing we have to do is pin our blocks together. We don't want the fabric shifting while we sew. If I say pin you really need to pin, I don't pin unless it's absolutely necessary. Don't panic you don't have to do them all at once. I didn't have enough pins to do them all at once. I worked in batches of 10. Pin in the middle of the triangles that formed from the X that you drew. This way you don't have to stop when sewing. When I got half of them pinned I started sewing. Doing them in batches also lets you see that you are making progress.
Now we sew!! The Xs that we drew on our white blocks are our sewing lines. We sew 1/4" from the line on both sides. I chain sew these, 10 at a time. Down one side, up the other, then I clip the threads holding them together, and repeat those steps with the other line.
|A 1/4" foot is a must for this. Keep the edge of your foot right next to the line you drew.|
|Just keep adding the next block when you get to the end.|
|Ahh the chain!!|
|The last block of the chain, becomes your first one when you sew|
down the second side of the line.
|Keep your blocks going the right direction. They like to twist.|
|Clip the little threads holding the blocks together. If you have kids|
this is a great job for them. I don't know how many chains I cut apart
when I was a kid.
|Start by cutting on the lines we drew.|
|Now we are going to cut it in half top to bottom and left to right.|
|You can see the 8 squares we made.|
Now we have to press them open. Press the seam to the plaid. We don't want shadows on the white fabric. Don't panic when they look funny. We'll trim them up in just a second.
|Eww that's an ugly block.|
Remember that ruler I told you about with the diagonal line down it? This is where it becomes a life saver. This is also where you can trim out little errors since our blocks are oversized.
|Keep that diagonal line straight with your fabric. I line up on the 3 1/8" line for this side and trim.|
|Rotate a half turn and this time line up on the 3" line. Trim away the extra.|
That's it! You've got a pretty HST now.
|So much better than before.|
Just keep repeating until you have them all done. I know it's daunting but I'm doing it right along with you. Next week we'll lay all those blocks out and start sewing our quilt together.