Wow lots of questions...
here are the answers rapid fire style:
That isn't a tether at the arm pivot, someone just thought that getting the globe motor wire out of the way of the sprockets might be a good idea...
The final stage does rotate to place the tetra on a goal.
It weighs about 80 pounds without electronics or armor.
The wheels are Colson Hi Tech Performas.
It goes 7 ft/sec.
The chassis has approximately .25 inches of ground clearance.
Check out pictures of our entire build season
here!
Rob