Parametric Elbow

Elbow.scad
A parametric elbow or simple shoulder joint.

Designed to be a joint in an articulated robot arm, it can be used to form many hinged structures, including gates, covers, support bars in baby carts etc.

It will allow you to hide wires etc. inside the mechanism, making the arm appear very simple, while the underlying system may be quite complex.

Quentin Harley  2012, GPLv2