Broken Leg Fidget

A friend recently broke his leg. I told him, going forward, it would be healthier to explore the aesthetics of an alternatively assembled leg with this fidget. My friends have humor, your results may vary. I printed this in PLA with a layer height of 0.16 mm. Enough clearance has been modelled in to allow the pieces to auto-rotate when sliding over the central thread, which is very satisfying. The leg can be assembled in 18 uniquely different ways. Can you discover them all? Unfortunately I can only create parametric designs. Therefore I used a model by user printable_models over on https://free3d.com/3d-model/leg-01-v1--546521.html. I merely made some cuts, added the thread, and added an anatomically incorrect looking bone. Share some love with printable_models if you can!