>>8267878I find pic related to be useful for providing a secure axis of rotation (the two ball joints) with a method of securing it perpendicularly, via the two pin holes on the socket end of the bone. It's a little funky to work with what with the socket getting in the way and the distance between the ball joints, but it's the only way I've found you can create a swivel on a large moc that is immune to gravity pulling out the axle while not relying on boucous friction from boucous ball joints on a single axle.
