Updated on September 6, 2022 by Sarina

how to sew a pinwheel block

A whirling Pinwheel is a good reminiscence of most of our childhoods. We all have made a paper pinwheel at one point in our lives – to entertain ourselves or to make another impressed or keep a kid occupied. This particular pinwheel doesnot whirl like the original, but it is a fascinating pattern to replicate.

Here are 2 easy ways to make pinwheel shapes with the help of fabric.

Method 1 – The basic pinwheel patchwork block

pinwheel patchwork block

To make this block, cut out 3 1/2 inch squares – 2 nos of one color and 2 nos of another color.

cut out square pieces of fabric of 3 1/2 inches  for the pinwheel patchwork block

Keep one color square and the second color square, together, rightside to the inside. Mark a line down the middle diagonally (the red line) Sew on either side of this line with a 1/4 inch seam allowance.

Sew them together along the either sides of the middle stitching line

Cut through the red line. Open up and you will get a half square triangle. 

Cut open by the middle line - you have half square triangles

Do this with the other square pieces too ; and you will have 4 pieces of the half square triangles altogether.

Join the 4 triangles to form the pinwheel block

Arrange in the order of a pinwheel and stitch them together. 

pinwheel shape for patchwork

Method 2  3 D Pinwheel 

To make this pinwheel shape, cut out 2 square shapes fabric in the dimension you want. Mark diagonally across the square. Cut across for making 2 triangles from each square. You get total 4.

You can finish the edges of the triangles to prevent fraying. Another idea is to make a facing for the shape so that it is reversible. 

pinwheel patchwork block

Keep the triangle in front of you, long side down as in the picture below.

pinwheel patchwork block

Fold one corner up. Press in place. 

arrange a pinwheel block

Do this for all the triangles.

Traingle shaped fabrics folded

Arrange in the order of the pinwheel. (Refer picture)

Place the folded triangles to form a pinwheel shape

pinwheel shape

Related posts: How to sew heart-shaped blocks – 3 types; How to sew star-shaped blocks – 9 types; Names of quilt blocks.

Did you like this post?

Click on the stars to rate it!

Average rating / 5.

Leave a Reply

Your email address will not be published.