This great, but still simple droid model is just for You! It's rigged, has blender cycles materials, and makes your homework (doesn't really). These things will make Your life easier, and faster, so You can concentrate on the more important things. It's ready to use.
I used it for a camera track, which can be found here, on youtube:
/watch?v=75bNWv7azt8&list=UUspj28dl_wtluyQ-sQ0-iYA&index=2&feature=plcp