When I first made my screw, the marble would keep getting stuck. It kept not going completely through the screw. To fix this I made the screw bend down at a bigger angle so it won't get stuck. One other huge problem I had was that my pulley kept falling over. It wasn't sturdy enough to lift up the book. So after I realized my pulley wasn't working I made it out of stronger materials. I made my pulley out of poster board to keep it up right, but this wasn't the last problem. One of the last problems I encountered while working on my project was, that the dominos I had were too small, and they didn't knock down the marbles. So I had to get thicker and bigger dominos, but after they were bigger they worked just fine. At first I thought that building my machine was going to be a piece of cake, but I was wrong, it took lots of hard work and effort. Just like engineering in the real …show more content…
An example of this is that the project log checks helped me not procrastinate, and because of these checks I wasn't stressed out. I finished everything in small little steps, and I wasn't trying to finish everything on the last day. Also this helped me learn that something that looks like it will work in your head might not actually work, and if you machine doesn't work you can't stop. You have to kept going. Like when my domino's didn't go up my ramp. I didn't give, and because I didn't give up and found a solution my machine worked. Even though I learned a lot from this project I believe the most important thing I learned was that you need a plan. If I didn’t have a plan this would be a lot harder. Knowing what I was going to before I started building my machine helped me save a lot of time. This is because I knew what materials I needed and I knew what my machine was going to look like. Although, in the end building and planning my machine helped me learn a