Lockable Ball & Socket Pivot Joint For Helping Hands

One thing I really want to be able to do with the maker bot is make more things to help me make more things.

This is an experimental design for a lockable pivot joint intended to be used (with about 5 brothers) in making a set of helping hands to hold circuit boards etc.

This should print without any problems on a makerbot (although it's small at the bottom so may be a little unstable - need to watch that :)

The sections join onto each other and the nut can be used to tighten the joint