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Hello and happy July! Today I have a tutorial for a pinwheel block that evokes fireworks and Fourth of July pinwheels. It’s part of the Boston Modern Quilt Guild block of the month series. Enjoy!

pinwheel block

The assignment: Create a block in guild colors of dark blue, red, and white
The inspiration: Independence Day! Fireworks in a night sky and pinwheels
Materials needed: 1/4 yard dark blue solid; 1/8 yard each deep red and white solids
Finished size: 12″
     8  6.5″ x 3.5″ dark blue rectangles
     4  3.5″ x 3.5″ red squares
     4  3.5″ x 3.5″ white squares
Notes: Square up your pieces after each step to accurately match up your points.
1. Place the red and white squares on the blue rectangles, matching up the top and side edges.
2. Sew from the top left corner to the bottom right corner of the square.
3. Trim 1/4″ from the seam line on the upper/right side of the seam line, as shown.
4. Press the resulting triangle away from the blue rectangle.
5. Pair up the red/blue rectangles with the white/blue rectangles. You’ll have four pairs. Match up the long edges as shown, overlapping the corners of the red and white triangles, and sew. Press the seam open. Repeat for each pair.
6. Arrange the four sections so that the white and red triangles alternate in a pinwheel. Sew the bottom pair together, matching up seam lines, and then the top pair. Press seams open.
7. Match up the center seams of the top and bottom sections and sew together. Press seam open.
8. Trim up your block and you’re all set!