All these models were printed with support and rafts. The shapes are challenging to print so on some I used .1mm layer height and 2 or 3 shells.
Also the multi mobius has 30% infill to support near horizontal areas.
Enneper was printed on edge due to horizontal surface, see photo.
I had avoided hard to print shapes but really its not so difficult and it opens up more possibilities.
MathMod was used as well as grasshopper/rhino.