Here are a couple of
photos of the 5943 design - we're using a Lazy Susan from
mcmaster to allow independent rotation. This is from our current version - we're redesigning the robot currently with a Slewing Ring Bearing instead of the plastic lazy susan. The design works great, however there are some inconsistencies in how we attached the lazy susans and the plastic lazy susans have a "wiggle" in them that causes our chain to skip.
You can download and see our full CAD model on
GrabCAD.