Another Pinwheel block uses units that are a combination of QST and half square triangles: a QST becomes one of the half-square triangles.
For a 12" finished Pinwheel you will need:
(4) Light/Dark1 Quarter Square Triangle units--or half units (a triangle), made from 7-1/2" squares
(See BOW# 28 for instructions for making Quarter Square Triangles)
(4) Half-square triangles, made by cutting (2) 6-7/8" squares in half diagonally
Arrange units as shown below.
Multiples of this block make a very nice secondary pinwheel:
This unit that combines a quarter-square and half-square triangle is useful in any number of blocks or designs. Here's a wreath design, from Karen Krause at Kanesville Quilting, that uses the units both in the wreath and the bow. Can you find the units?