1. Find the halfway point on one side of the square.
2. Put the metal point of the compass on point A. The pencil point goes up at the halfway point B.
3. Arc the compass down to C.
4. Draw a line extending the side of your square and finish making a rectangle.
You now have 2 sizes to work with inside the whole piece. Instructions for finding additional dimensions to use within your Orthogon can be found at the Design Application link.
About Orthogons Orthogon Instructions Design Application Historical Use References Links Artist