There is the secondary design because the double triangles make a diamond. And when you put the three diamonds together you get a cube. I am using the diamond shapes to make a tumbling block quilt.
I have the triangle die from Accuquilt and hope some time to make a quilt of triangles. The one you have planned looks fabulous.
Last edited by quiltingcandy; 01-25-2017 at 10:30 PM.