In the previous post, the blocks that were squared had two sides that were already “square”. Today, I’ll show you how I squared blocks with a diagonal / half square triangle seam. My go to block for comfort quilts or a quick quilt anytime is the Strip Twist block from Bonnie Hunter at Quiltville.com. I use jelly roll strips for it or cut strips from fat quarters. The blocks stitch up quickly and the seams always match perfectly. And while it’s a great scrappy quilt, it takes on a whole different look with coordinated colors or set on point. Here’s a single strip twist block.
After the success of squaring up square blocks, I decided to see if I could do a block with a half square triangle seam. And it worked great. After stitching these blocks, for whatever reason, are just slightly wonky and no two are exactly the same size. So, I always square them up to the same size.
I used the 10″ square die for the GO! Big for these photos. But I have also squared this up with the 8-1/2″ square die and the GO! cutter.
I used my Square up ruler to measure the block when it was folded on the diagonal seam line and then I transferred those markings to my die using Painter’s tape. With the ruler on the die, I inserted pins in the foam at the end of the diagonal lines on the ruler and then stretched the Painter’s tape from pin to pin. (Can you see my reflection on the ruler?)
Then I carefully laid two blocks folded in half in each corner = 4 layers, Do not press blocks open until after cutting. The diagonal seam is laid exactly on the line of the tape and the corners are centered beyond the blades. This is what you have after it is cut. This is the easy peasy way to square these blocks.
And while I used the 10″ square die, this works well with the 8-1/2″ die too. It will all depend on your block size.