Free Quilt Block Pattern
The Rainy Day quilt block is a great choice for moving on to increasing your skills in precision, with the introduction of quarter square triangles in some of the patches to make this pinwheel design. Actually, the unit you will be making is sometimes called a three quarter square triangle patch as the unit is made up of three triangles, rather than four. Look closely at the illustrations and you will understand what I mean.
This four patch block is not as common as other quilt blocks, and really, I have no idea why it is not. It's a fun and easy block to make.