[trebleshot]

Quote:

Originally Posted by hrothgars

The inside of the hip is indeed attached by a ball joint. The barbell inside the pelvis has two ball ends (one for each hip) and joins both hips through the pelvis.

Well, there's part of my problem. I've never taken apart a DCUC toy before.

Quote:

I think we are all thinking of the junction at the outside of the hip, which is a restricted-range pinned hinge.

While that's a bit of a mouthful, but at least we know what to call it now. Thanks!

And it seems almost every joint can be broken down into a combination of any of three types: ball/socket, hinge or swivel (with friction, pinned and rivet being the different versions of the last two). Or possibly just one of those three for simpler toys.