Creating The Golden Section
To make the Golden Section tool, you need to know how to measure exactly where to mark the spot for the hole that will connect the two flat strips. That measurement is usually referred to as the Golden Section.
Draw a straight line, then draw a perpendicular from one end of the line, to a distance equal to half the length of the first line.
The above was adapted from a great webpage titled The Golden Mean. You can find it in the Resources section.
Introduction & Resources
Tool Description and Instructions