Ball and Cube robot

This robot was designed as a demonstration robot for the Intro to Engineering class that I was a teaching assistant for.   The goal of the competition is to collect 1 in. balls and cubes and deposit them a raised goal.  There are two 3D printed belts with fins (not shown) driven by servos that collect the balls and cubes and deposit them into the hopper.  The hopper then flips up to deposit the objects into the goal.  All the parts besides the electronics are laser cut or 3D printed.