

This sconce light demonstrates how to create a double spiral by applying a light projection from one side of a loxodrome to a wall on the other side. In mathematics, we call this type of projection a stereographic projection. I finished a small 4 inch prototype on 10/10/11, and presented a large 8 inch model at the 3D Printer World Expo 2014. It received many positive responses from viewers. Please email me me if you would like to purchase one.



The loxodrome is a nautical term referring to the path that a ship follows on the Earth if it maintains a constant heading. For example, if a ship maintains a heading of 45° North-East, then it will spiral around the North pole as it approaches the pole, but it will never reach the North pole because it is not pointing due North. Similarly, the ship will spiral around the South pole in the opposite direction if it follows the path in reverse.



