Full disclosure, I learned to do this from Youtube: Learn to make fast and easy pinwheels - Missouri Star Quilt Company Check them out! Or if you just want a quick step by step, keep reading! Pinwheel Quilt Block Tutorial Start with 2 squares the same size. Mine are 9.5" x 9.5" Pin them right sides together Sew 1/4" around all four sides Sewn around all four sides! Cut corner to corner across the diagonal Cut corner to corner across the OTHER diagonal You should have 4 little pieces that look like this. These are called "half square triangles." Iron them open. "Square them up" aka cut them all so that they are exactly the same size. Mine are 6'' x 6'' It can help to line up the diagonal with diagonal line on a big square ruler like this. Turn them the other way and square up that side. Arrange all 4 half square triangle into a pinwheel--or whatever shape you w...
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