This is an .stl file of an 18x36 Nested Vorticies ABHA Torus. This thing is based off the work of Vortex Based Mathematics. Nature loves a spiral, from seashells, sunflowers, the path of least resistance. This will be a difficult challenge for any 3D printer, if anyone can,, send me a pm.
I would imagine there would be some support involved and a HIGHLY accurate and tuned machine. My crude PRUSA would have a tough time with this one. So if you think you can pull it off, I would love to see an accurate model printed. Up to this point, the most accurate model constructed by crude methods. This will also give a boost to everyone working in this field, attempting extremely exotic physics experiments.