in the picture on the left how the blocks are stitched into rows. The
green lines separate the rows.
The triangles are added to each end of the row. Then the rows are stitched
Each triangle must be attached to the end of the row with the bias edge against
the quilt block, and not on the side of the quilt. Below you will find
instructions on how to cut these setting triangles.
SIDE SETTING TRIANGLES
There is an easy way to calculate the size of your setting triangles.
Let's start with the sides. First you measure the size of the finished
block. Multiply that number by 1.414 and than add 1 1/4 inches.
Since you are going to be trimming the edge, you can round the number up to make
cutting easier. Cut a square the length and width of your number.
Then cut the square in half diagonally, twice. That will give you 4 side
Cut as many squares as necessary to get the number of triangles you need for
the sides of your rows.
As far as the corners, you only need to cut two square in half on the
diagonal. Again, using the finished size of the block, take that number
and divide it by 1 414. Add 7/8 of an inch to that number, and that is the
size of the block that you cut once diagonally.
TRIMMING THE EDGES
When you sew your rows together, the edge will need careful trimming.
Be sure and leave the 1/4 inch seam allowance all around the outside.
Trimming such a large amount of fabric can be tricky. You may want to
starch the edge before you begin so that the fabric will lay still and you can
get a very accurate cut.
Diagonal settings give movement to a quilt, and in my opinion, make quilt
blocks look even nicer. Start small if you have never done it before, but
be sure and add this technique to your quilting skills.