Rube Goldberg Machines.
A Rube Goldberg machine is a complex machine to do a simple task. It contains a serious of steps including simple machines. This is a picture of a step by step of our machine. The first thing we do is send small beebs down our inclined plane. Our very first simple machine is a 58 meter inclined plane. Our second step is a screw with a mechanical advantage of 0.042. Mechanical advantage is the ratio of force exerted on a machine to the force applied to it. Our third step is a slight inclined plane that leads the beebs to a hole to fall through into cup that will trigger the pulley. The third step is a pulley with a mechanical advantage of one. Next we have our lever with a golf ball balanced on the end. When the pulley is triggered it pulls the fifth step, our lever. That then drops the golf ball down a slight inclined plane made by straw like tubs. The ball then knocks over a cup attached to a pulley, lifting a piece of wood blocking the wiffle ball. the ball then rolls down our fourth inclined plane knocking a cup with fish food into a wedge and pouring out the food. The food rolls down a series of inclined planes into the fishbowl.
A Rube Goldberg machine is a complex machine to do a simple task. It contains a serious of steps including simple machines. This is a picture of a step by step of our machine. The first thing we do is send small beebs down our inclined plane. Our very first simple machine is a 58 meter inclined plane. Our second step is a screw with a mechanical advantage of 0.042. Mechanical advantage is the ratio of force exerted on a machine to the force applied to it. Our third step is a slight inclined plane that leads the beebs to a hole to fall through into cup that will trigger the pulley. The third step is a pulley with a mechanical advantage of one. Next we have our lever with a golf ball balanced on the end. When the pulley is triggered it pulls the fifth step, our lever. That then drops the golf ball down a slight inclined plane made by straw like tubs. The ball then knocks over a cup attached to a pulley, lifting a piece of wood blocking the wiffle ball. the ball then rolls down our fourth inclined plane knocking a cup with fish food into a wedge and pouring out the food. The food rolls down a series of inclined planes into the fishbowl.
Goldberg Project History
The goal for the machine Feeding Nemo is to feed a fish. Our original plan for the machine consisted of a toy car being released and the screw being brought through multiple holes in the 3x8 piece of wood. On our first build day we attached our inclined plane, that was probably the easiest part of our project. Then from there we had to figure out how we were gonna attach our screw to the inclined plane and down to the bottom of the board. Then we tried to take the tube in and out of the board through holes, but that didn't work. So after lots of trial and error, finally figured out how to get the screw to attach. We drilled a hole in the inclined plane and fed the screw through. Then we took a piece of wood in the middle of the screw and from the piece of wood we attached smaller pieces of horizontal wood that helped support the screw. Figuring out how we were gonna have the screw work was one of the harder parts in this project. Then from there we had to figure out how we were gonna have the bebe's that come out of the screw somehow either land on or trigger the lever. We tried different ideas, but the one that worked the best was, for the balls to roll down an inclined plane after they came out of the screw and then fall through a hole in the inclined plane into a cup. Then the weight due to the bebe's in the cup that pulls up through a pulley to tilt the lever. Once the lever is tilted then a golf ball falls off and then we decided to put two straw like things at the end of the lever, so that when the golf ball rolls off it slides down the inclined plane that the straws created. Then the golf ball falls into a pulley and that releases a marble which knocks the fish food into the bowl after it rolls down little inclined planes. Our project took hard work but we finished it. Things that consistently worked for us were are inclined planes, screw and wedge. Other things that we had a really hard time perfecting would be our lever and both pulleys. all the things working and not working did benefit me in the long run. If helped me work better in a group and taught me how to let other people do some of the work. I belive something I could have done better was put trust in my group from the beginning. I could have also been better at listening to other peoples ideas. In my opinion I think I learned a lot and will carry on the things into future projects.
The goal for the machine Feeding Nemo is to feed a fish. Our original plan for the machine consisted of a toy car being released and the screw being brought through multiple holes in the 3x8 piece of wood. On our first build day we attached our inclined plane, that was probably the easiest part of our project. Then from there we had to figure out how we were gonna attach our screw to the inclined plane and down to the bottom of the board. Then we tried to take the tube in and out of the board through holes, but that didn't work. So after lots of trial and error, finally figured out how to get the screw to attach. We drilled a hole in the inclined plane and fed the screw through. Then we took a piece of wood in the middle of the screw and from the piece of wood we attached smaller pieces of horizontal wood that helped support the screw. Figuring out how we were gonna have the screw work was one of the harder parts in this project. Then from there we had to figure out how we were gonna have the bebe's that come out of the screw somehow either land on or trigger the lever. We tried different ideas, but the one that worked the best was, for the balls to roll down an inclined plane after they came out of the screw and then fall through a hole in the inclined plane into a cup. Then the weight due to the bebe's in the cup that pulls up through a pulley to tilt the lever. Once the lever is tilted then a golf ball falls off and then we decided to put two straw like things at the end of the lever, so that when the golf ball rolls off it slides down the inclined plane that the straws created. Then the golf ball falls into a pulley and that releases a marble which knocks the fish food into the bowl after it rolls down little inclined planes. Our project took hard work but we finished it. Things that consistently worked for us were are inclined planes, screw and wedge. Other things that we had a really hard time perfecting would be our lever and both pulleys. all the things working and not working did benefit me in the long run. If helped me work better in a group and taught me how to let other people do some of the work. I belive something I could have done better was put trust in my group from the beginning. I could have also been better at listening to other peoples ideas. In my opinion I think I learned a lot and will carry on the things into future projects.
This is a photo of our machine 100% complete.
https://www.youtube.com/watch?v=Wix9q1hr-Nw here