Stocker Rube Goldberg
- Seven Segment Display
- LM324 Op Amp
- Resistors: Various Ohm Values
Rube Goldberg Plan
The setup I have chosen to use consists of seven segment displays, a relay, op amp, transistor, motor and dominoes. The plan is to get voltage from my partner next to me to flip the relay. I haven't figured out how I will get my voltage to start from his rube goldberg. I was thinking of using a solar panel like the project in front of me who I will have to connect with. From there it will light up the seven segment displays and go into the op amp. I plan on having around 1 volts go into the op amp and around 10 come out by using resistors to get a gain of 10. From the output of the op amp it will be sent to the transistor to power the motor. The motor will be used to spin and hit the first domino to create a domino effect. I will have the dominoes go up and over the desk to fall down to the other side. The person I will be connecting with will be using a solar panel and will have it covered by a sheet of paper. With the dominoes I will be able to pull off the sheet to get his circuit going. In my video it isn't exactly ten seconds because my second set of dominoes are two hours away and I wasn't fully able to get it to the time limit. Once I get my second set of dominoes I will be able to add a longer setup.
When it comes to using dominoes it is very easy to fail and knock them over. It happened to me a few times and also when the dominoes had to fall off the edge shown in my first video, the domino path didn't continue. Other failures involved the circuit with not putting in the correct resistor values to create the desired gain for the op amp. Also the resistor values for the transistor were off making the motor spin very slow and not hitting the domino over.