I have been part of the robotic team of my engineering school ESEO in France (http://robot-eseo.fr). I was responsible of the mechanical design and the assembling of the robot. In 2010 we finished at the fifth place over 140 teams with this guy :

View with protection case

View with protection case

View without protection case

Front view

Lift detail front

Lift detail rear

Gripper detail

Exploded view

Gripper

Lift assembled

Complete assembling

And the result in action !