If Your Life Is A Complete Mesh It Might As Well Be In Knots... Clever program from yesteryear for making all kinda knots that would be impossible to model out by hand... Outputs to various formats... OBJ, POV, DXF+....
https://archive.org/details/knots-3-d-3.42a-free
https://archive.org/details/knots-3-d-3.42a-free