this is designed to uswe with 6mm tube for flexible extension, etc.
use some lube to smooth movement.
inspired in gorillapod joints.
aditional 6mm hole in each extreme for connect tube.

print
snap in, use some lube to easy motion.
5 Dec 2013 - Added separated stl files for male an female parts of the joint.
-New female part allows almost 90ª . inspired in tripods ball heads.