Sunday, April 9, 2017

Week 12 Drake

Blog Sheet Week 12 - Drake

1. Provide the computer drawing for your individual RG setup.

2. Explain your setup.

In the RG setup that I created it starts with the switch that triggers the relay.  Once the relay is triggered the motor starts and will release the marble.  The marble goes down the ramps of my mechanical device and enters inside the goal.  Inside the goal the marble will flip my second switch, and on my circuit board GOAL is lit up, and the LED lights up on top of the goal.  The second relay is also triggered to go onto the next RG setup.  

3. Provide photos of the circuit and setup.

4. Provide at least 2 videos of your setup in action (parts or whole), at least one being a failed attempt.

Above is a successful attempt.

The circuit above was a failed attempt.  It failed because the ball was very wobbly down the ramp and didn't have a direct path to the switch.

This is a fail when I was designing the circuit.  I had made the mistake of turning the relay and GOAL off when the switch was turned.

5. What failures did you have? How did you overcome them?

The biggest failure that I had was having enough power from the marble to trigger the switch and turn on the second circuit board.  The ramp was a little big, so the marble didn't necessarily have the most direct path to hit the switch.  I overcame it by making the ramp skinnier and adding tape to the ramp which decreased friction on the ramp and allowed the ball to travel faster.  At first I wanted a bigger ball, but I realized that the equation 1/2mv^2 means that the more power would be because of a higher velocity not a bigger ball, so I maxed the velocity as much as I could from the ball.  


  1. Currently, I cannot judge the mechanical and circuit part complications. Schematic needs to be much more detailed technically. Photos and videos are missing. Failures are superficial.

  2. By visualizing your design and what i saw in class i liked what you did. Im noticing a lot of people used the photo sensing resistor and I'm starting to wonder if i could have implemented it into my circuit in any way. overall nice job. once you add the missing components to your blog you should be good.

  3. I like your idea, but it sounds very similar to my own. However, my mechanical setup comes much earlier than yours and mine ends with an LED that powers the next circuit. Have you found a way to send the marble in a relatively accurate direction for the next person's use?

  4. I like the idea of what you have so far for your RG setup. I can visualize what you're trying to do even though the photos and videos are still missing. Your device is pretty similar to the one I have, utilizing a photo resistor to start everything off. Im excited to see how it turns out.

  5. i like your design and i think it is a good idea to use the transistor to connect the photo sensor to the relay by the op amp, in mine i didn't use the transistor to connect the motor by the relay i just give power to the photo sensor so it works, the mechanical part i saw in the class is very good.

  6. I like your idea from your explaination, I think it is not easy to use photo sensor, transistor and op amp to switch relay and it will be good if you can do it. I suggest you to add another mechanical part to your circuit to make it more complicated.
    Good job

  7. It appears that you picked very reliable compnents and I think that that shows that you have learned a lot by working with each of the components directly I elected a lot of the same components in my own setup.

  8. Your circuit set up is really great, combining these components will allow you to activate any motor. I know it is hard to select a resistor for the op amp because it needs to be calculated, I am not using opamp but i think using big resistors will make the voltage reaches its maximum value. I hope there was photos for mechanical part, I think it is similar to the ones we tried to in our last project but we couldn't success in turning the motor but i am sure you will.