The Central Support System (CSS) of my robot is a fairly straight forward design. It has several circular plates spaced as necessary to accomodate various electronic boards, speakers, etc. This CSS design compresses the torso from bottom to top. A CSS of this design is absolutely essential if you are to have a bubble lifter and are mounting a 4 DOF arm or greater. What you see before you is the prototype for a more sophiscticated CSS that will handle 2 5DOF arms, bubble lifter, 3 BPSSolutions RC Macro boards, multiple brain & chest light boards from Tom Wisnionski. Later on I will get into the electronics of the B9.The black plate of this CSS has the matching waist gear ring on the bottom side of the plate.