Of course, the first block I made was 10-1/2 x 10-1/4″–that just won’t do! Thus, here are the things I did to make sure the next block came out exactly 10-1/2″ x 10-1/2″. And remember how much easier it is to work with fabric, which has a fair amount of “give”, than working with some other materials such as wood.
1. Stitch scant 1/4″ seams – especially on the triangles. If the large center 6-1/2″ triangle isn’t just exactly sized, you can use the scant seam allowance in the center and on the sides to make up the difference.
2. Finger Press or Dry Press–NO steam!
3. Measure units before assembling. If one is off more than 1/4″, don’t use it. There is no reason to ruin an entire block because one unit is not sized.
4. Make sure the rectangles are the correct length and width. Gently stretch or ease the triangles to fit the rectangles as you stitch the block together.
5. Press to dark when possible. Press to side with least # of seams as needed.
6. Stitch seams so that dark is slightly “under” the light – or trim the dark if it overhangs so that you don’t have shadows underneath the light.
Remember that the rectangles are mirror images – be sure to sew accordingly. Half of them should have triangles added to the right and half of them should have triangles added to the left.