This is a Star Wars themed BB-8 head for EZ-Robot Chassis like the Six robot. It includes a modified hollow head and base plate with male EZ-bit connector.
Two base plates are included. One has the BB on the base plate which indicates that is the back of the plate, so the holes line up. There are also indents so LEDs can be glued in you want so they can shine through where the indicator areas are thinner.
The second base plate has a hole in the back for wires to go through instead of the BB letters.
When you assemble the head and bottom plate, there are screw holes, but you might need to add some hot glue or just glue it together and forget the screws if you don't have any small ones.
Also, the BB on the bottom plate might interfere with your particular project needs, if so, just sand them down. They sand off really easy.
The hexapod dome body .stl file is not included. If you need that .stl you can download it from http://www.ez-robot.com
There is a new BB-8 themed Hexapod dome at: http://www.thingiverse.com/thing:1553554