We started building our project and we got up to step six we tested it out and it worked but now we have to continue with machine. Setting up the dominos was very frustrating and as well as getting the right sized marble for our machine so that is can slide through our tunnels. At the start, our machine was very easy because it was just ramps and a roller coaster. Our machine is a little different compared to our plan. We also need to come up with different ideas for steps as we repeated many steps. We have tunnels, ramps, and dominos. I learned that you need a lot of momentum to keep the marble rolling. We are going to have to bend the path of the machine around the room. Our machine has multiple marbles to keep it going. We had to make a domino hold a marble so when it gets knocked over the marble will continue on the track.