Originally Posted by quilter53
I've done it before but refresh my memory. How do I measure the triangles for the pinwheel block to make it a larger square. Does that make sense?
In the sew around the square method, you can just start with larger blocks.
The formula is size of fabric square - .5 x 1.4 - .5 = size of pinwheel. Trim blocks.
12' block minus .5 = 11.5 X 1.4 = 16.1 minus .5 = 15.6 trim to 15.5" or
Start with 10" blocks minus .5 X 1.4 minus .5 = 12.8. Trim to 12.5
In the put two squares together then sew an X and cut apart, square up and sew blocks together.
It is the size of square you want plus 7/8" or 1" is better I think. Trim each segment.
Put 4 of these together to make a pinwheel.
If you wanted a 12" pinwheel, cut your squares to 13".
Sew together on each side of the X. cut apart and square up each to 6.5". Sew together to make a 12.5 block
I hope one of these answers your question. I'm just guessing what you are asking. If I'm wrong just ask again!
:-D