Customisable Torus Knots

A while back I published a customisable torus knot https://www.thingiverse.com/thing:231727 but it was very slow. This version uses the same construction as in my knot index http://kitwallace.co.uk/3d/knot.xq and is also customisable.

Recently pmoews created another version but this uses an separate Fortran script https://www.thingiverse.com/thing:2363723

Unfortunately I can't try to print these designs because I'm on a small boat in Turkey with no room for a 3D printer.