Strange chaotic attractor in small and large size

Strange chaotic attractors

Small and large strange chaotic attractor. 

Designed in Mathematica. Earlier in the semester, students were assigned to print attractors, and there are more details on the process in their blog and Thingiverse entries.  But I wanted one in a size fitting for a classroom lecture demo.

Printing done by Patrick Bishop on Ultimaker S5 with dissolvable filament.