[Rohawk1]

Originally Posted by Duncan Macdonald

That last link works. I now understand what "RC car pickup" means.
I really like this robot, very unique and very competitive. Could you go into detail about the vacuum design? Did you take a shop vac and swap the motor? Did you experiment with different cup sizes and seals?

Yes exactly! We bought a couple shop vacs, cut them apart and replaced the motor with an am-9015 I believe (that number could be wrong). We prototyped the shooter head many times, and in that process we coupled the hose that comes with the shop vac to a printed head and found that door sealers (the plastic rubbery magic that keeps air out) work great with the aerial assist balls.