How to make a Spiral Wind-Spinner [Table of contents below]
Use a piece of 4" x 4" (100mm x 100mm) wood 40" (1m) long to make the spiral Wind-Spinner.
Pencil-mark the top side according to the dimensions given below.
Then cut along the point-shaped pencil lines, creating a wedge.
Turn the wood on its side. Pencil-mark another point-shape on the face of the wedge, as shown on the drawing below and in the picture on the right.
Then cut that point also.
Measure along line (a) 1 3/16" (29mm) in from one edge and pencil a line from there to the point, as shown in the drawing below.
In order to cut along the pencil-line using a circular saw with the blade set on a 45° angle, ensure the pencil-line is on the same edge of the wood, as is shown in the drawing and photo.
Set the blade at 45° on your circular saw and cut along the pencil-line beginning from the point.
Then cut along line (a) with a handsaw to get rid of the off-cut piece.
Do the same to all four sides.