Rube Goldberg Successes

When my partner Om and I were working on our Rube Goldberg we had many fails but we also had many successes. Some elements always worked, like the planks hitting the door and our baseball ramp.  Our hot wheels car worked very efficiently and our ball pipe worked as well. I was most surprised that the cup pulley to release the marbles and the pulley to let the car go actually worked! These were all of our successes and we had a great experience building the Rube Goldberg.