How to Draw the Sri Yantra
based on Patrick Flanagan method.

This method leads to a very precise Sri Yantra. It is the most presice geometric method for drawing the Sri Yantra that I know of. I have added additional steps so that it can be drawn with a minimum of measurements. It is possible that way to draw it using only a straight edge and a compass.

Click here to see the animated version.

Click here to see the original instructions from Patrick Flanagan.

The First step is to draw a golden ratio triangle.
See here for detailed instructions on how to draw a
golden ratio triangle.

The next step is to draw a 3-4-5 triangle.