That's cool I didn't know any of that. Anyway Robert got it, sort of. I originally tried Greg's approach but the magnetic attractors were too difficult to set up in stable orbits.
I actually created a 2D drawing machine I.E. Pintograph I.E. Guilloche device using physical connections
then I moved the "pen" in a sine pattern in 3D space. The ones I'm working on are a little more elaborate, #1 was really a proof of concept. The pattern is slowly distorted by fractal noise / turbulence over time as well