Lissajous Knot

This is a Customizer of Kit Wallace's Knots:

https://www.thingiverse.com/thing:2257185
http://kitwallace.co.uk/3d/knot.xq

see:
https://en.wikipedia.org/wiki/Lissajous_knot

print with supports
note - if you use a small rope diameter or low perimeters,
you may have trouble separating the supports without
breaking the model

note - to make a 2D lissajous curve, set the vz (z scaling) to zero