This is a wall hanging I found in doctor’s office today. It is about 30" wide and seems to be made out of fiberglass and then painted with streaks of fairly thick acrylic paint.
The shape is the Fibonacci spiral which is found in seashells, tornadoes, galaxies in space, and sunflowers. I thought it would interesting to make a 3D print of this geometry, but I have no idea where to begin. It’s easy to generate a Fibonacci sequence, but how to turn this into a spiral curve? And then how to create the continuous 3D relief surfaces? Could a 2-rail sweep do it?