My Idea For this week is to make a mill tower using Cardboard to make the mill structure, DC motor to make the fan, switch to turn it on/off, green led to refer if it on/off and 220 Ohm Resistor to protect the led
I chose this idea because I love mills a lot
To Design the Circuit
Screen Recording
DC Motor
Breadboard
Switch on/off
9V Adaptor
Green Len
220 Ohm Resistance
Cardboard
Wires
Glue Gun
Scissors
Cutter
Circuit Design onTinkerCad
1- Inputs
ON/OFF Switch (on TinkerCad there is no on/off switch so I used the push button instead of it )
2- Outputs
DC Motor
LED
3- Why did I choose these components and materials?
The DC motor: is used to drive the mill tower and simulate the grinding of grains.
The LED: is used to indicate when the mill tower is in operation or to provide other useful information.
9V Power Supply: I chose the 9V power supply for my project based on the voltage requirements of the components I used in the circuit. DC motor typically requires a higher voltage to operate efficiently, and a 9V power supply can provide sufficient voltage to power the motor (when I used the 5V power supply, the motor didn't run at high RPM)
Cardboard is a great material to use for this project because it is lightweight, easy to work with, and readily available.
3- How does it Work?
When the button is pressed or be ON, the circuit is activated, causing the LED to light up and the motor to spin
4- Why I wired Them In Series?
Wiring components in series means that the current flowing through each component is the same, and the voltage is divided between the components. In other words, the voltage drop across the motor and LED will be shared between them. This can be useful in some cases
also, I chose to wire them in series to limit the current flowing through the LED
Overall, this project is an example of how simple materials can be used to create functional and informative structures. It also demonstrates the principles of mechanical engineering and the use of motors and LEDs in practical applications.
Starting By Cutting outer frame
1- two equal rectangulares represent the tower sides
2- two equal irregular shapes to make it easy lets say they are two rectanguler with non equal Widths the upper widths smaller than the lower
Then assembly them together
After assembly the frame I put piece of cardboard to put the the breadboard on it
Mounting the propeller using glue gun
Cutting the propellers, i used just two of them for aesthetic form
First I connect the led on the breadboard
I used crocodile wires to lengthen the led legs to be able to put it at the interface to the tower
Then I connected the whole circuit together
1-The negative of led negative is connected to crocodile wire connected to jumper wire connected with one side of resistor on the breadboard and the other side connected with jumper wire to the negative from the power supply ith the resistor
2- the led positive leg ( the tallest) with motor positive together on the crocodile wire connected to one leg of the switch
3- Negative of power supply is on negative on breadboard
the positive is conected to the other leg of switch
Then i fixed the motor on the 4th side of the frame
i used the double face to fix it
( gule is not allowable with the electrical components )
Put the Switch and make rectangular hole for it
Put the power supply at the back of the tower and make hole for it
Mounting the motor with the propeller
I used a small thin piece of wood and string and tied it to the motor
for the propeller side, I make a hole in the middle of the propeller and fill this hole with glue then put the wood
This is not a 100% Structure operation, so I postponed it for a moment to connect the circuit to see where I will put the motor.
Put all components into the tower
(don't forget to test whole circuit before close the tower)
I faced some challenges in this project
It was not easy to connect the motor to the fan, it was not fixed as required, but after several attempts, it became stable with it
I didn't know how to turn on the LED outside the breadboard to show it in front of the mill
As usual, Engineer/ Menna Elbadry helped me with that and told me to use Crocodile Wires to lengthen her legs outside the breadboard
When I added the LED at first, it did not work. I uninstall and installed it several times, and each time I do not know the reason, but in the, end I discovered that the edges of the LED touched together because of the crocodile wires , I but the away of each other and it worked at the end
This week we did one of the best activities in the diploma
It is a sumo car fight
My team this week was Abdul Rahman and Mayar, they were great and we did a great job as well
In the end we lost, but it was a great experience
The challenge in this experiment is to make sure of the four Push buttons (For Each Motor) that you will control in the motor are fixed well in the breadboard and to check the wires.
Also, make sure that the two motors work with the same efficiency. We had the left motor working less efficiently than the other. This may cause an obstacle in moving smoothly.