view → [ 6.9MB movie in mp4 format] tangledball.mp4
a slowly expanding tangled ball can be seen, acted on by large, slightly unbalanced forces over a period of several minutes
forcevectors are much larger (1000x) than is recomended for solving knots, and unbalanced within a single order of magnitude.
even large changes in magnitude of the forces have little effect on the structure once it reaches a certain size, due to the 'potential energy' of the object.
a knot, with circular motion in the direction of the thread, with no update of the z-buffer.
in particular note the 'phase change' about 1/2 way thru, and the shift near the end caused by changes in magnitude or each force
possibly → modular origami » http://www.mizushobai.freeserve.co.uk/modularorigamiindex.htm
lines of force
kinda messy, but should serve to illustrate…