Embedded Files
Ideation
Ideation
Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)
Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)
Hovercraft
my hovercraft
Assignment for this week is to Design, simulate, and build a simple electronic device that performs two actions ( emits light, makes noise or sound, and/or makes movement.
I choose to build a Hovercraft moves on a smooth surface supported by a cushion of slow-moving and high-pressure air .
I choose this project because :- I love teach Physics in the Real World as a STEM projects for kids .
- With this project I can teach science facts behind the hovercraft
- it suitable for this week assignment because I can design it with one motor . leds , breadboard , some wires and cardboard and it will make two actions ( moves and emits lights).
Tool Chain
Tool Chain
Which software/machines/materials did you use in the assignment? Why?
Which software/machines/materials did you use in the assignment? Why?
Software :
Tinkercad portal
to build and simulate the circuit online
Materials :
1- Breadboard and Jumpers to connect the component
3- 5V Adaptor (or 3AA batteries ) to Power the circuit.
4-Three led
5- Three resistors.
5- DC motor
6- ON/OFF switch
8- Plastic Fan
and other cardboard materials, scissors, a pencil, cutter , thick paper to make the body of Hovercraft.
Tinkercad portal
Electronic component
Design/Preparation Process
Design/Preparation Process
Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?
Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?
first step : Design and simulate the circuit :
in The Hovercraft there are an electrical circuit that includes three LEDs (red , green and yellow), an on/off switch, a DC motor to make a flow of air , connecting wires between components such as between the LED and the resistance, on/off switch, three resistances to reduce the current going through the LED to make sure it won't burn out, breadboard to share space with all components linked together in a circuit and a 5V adapter.
I begin with open the tinkercad and drag and drop the component in the working area then built the circuit as shown in the image below.
circuit in tinkercad
the three LEDs and the DC Motor connected in parallel and the push button connected in series , when press the push button the circuit is closed and the three LEDs emit light and the motor rotates.
1.mp4Video for simulation process in tinkercad
Second step : prototype the electrical circuit on a breadboard :
1- from the electronic kit i get ( Breadboard and Jumpers -Three LEDs - Three resistors( 220 )- DC motor - ON/OFF switch
2- connect The three LEDs on breadboard.
3- connect the negative leg of each LED with a resistor on the breadboard.
4- connect the three resistors in parallel
4- connect the breadboard with the On/off switch in series.
5- connect the positive legs of LEDs by Jumpers in Parallel on the breadboard
6- connect th DC Motor in parallel on the breadboard.
7- connect the 5v adapter .
8- When I power the circuit by plug the 5V adapter in 220 V source and press the on/off switch , the LEDs emits lights and the motor start to rotate.
8.mp4Video of Electric Circuit.
Why I use 5V adapter :
because
1- The voltage across the motor should be around 3-9 volts .
2- The voltage across each LED should be about 2 Volts .
by connecting them parallel, each component will receive 5V.
The LED is attached to 220-ohm resistance so it can take the 3V that excess. I chose 220-ohm by applying ohm's law (Voltage= Current*Resistance). The recommended maximum current throw the LED is 20mA. The excess voltage that the resistance will receive is 3V so the optimum resistance is 150-ohm. Thus I chose the resistance with the nearest value which was 220-ohm.
so to avoid causing any damage to the electronics I used such voltage.
Development/Implementation Process
Development/Implementation Process
Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?
Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?
Third step
make the body of hovercraft .
I use cardboard and thick paper to make the body of the Hovercraft as shown in these pictures: Follow the steps in the images
Fourth step
assemble the electronic circuit with the body of the hovercraft Follow the steps in the images
4.mp4Video of the body with Electric Circuit and the body .
images The final Project
3.mp4Video1 of the final project before assemble the LEDs
5.mp4Video2 of the final project
Community of Learning
Community of Learning
Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?
Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?
MACKEATHON Day :
Build a simple Sumo RC Car by design, fabricating, Wiring and integrating all the components. Fight your opponents in a Sumo Car tournament!
Participants are divided into teams from 2 or 3 member, my team was I and Basem Mosallam and we choose Dragon Team as a name for the team
We start designing the chassis of RC car on the Fusion 360 software and we design a simple base 20 x 15 cm rectangle and have a triangles in his front - contains Two rectangular slots for the fixation of the 2 DC motors - two holes at the front for the fixation of the caster wheels using Screws and Nuts.
Save the file in DXF format
in Laserworks program, we save the final design in G-code format and upload it to the laser cutting machine to start the manufacturing process.
Make the remote controls :
We build two h-bridge circuits on Two separate large breadboards to control each of the DC motors separately,
Assemble the base , caster wheel , 2 Yellow DC Motors and remote controls
Extend the DC motors wires by connecting multiple Jumper wires end to end, and secure them using tape
Use 5V adaptors to power each controller separately from a nearby power plug
Finally was to test the power of the RC Car by competing with other cars and I guess my team made progress on that and we have the first place in this sumo competition .
Why ?????
Stability and friction with the ground
Our RC car have the The heaviest weight due to the big base we built.
We use 5V adapters to power the motors and this made the RC car slower than other but the friction between the wheels and the ground become bigger and harder to bush it, Unlike other cars that were faster but the friction is smaller and easier to bush it .
Fast & Light Vs. Slow & Heavy
The fabrication of RC Car base
The RC Car with controllers
the 4 teams in the Sumo Car tournament!
20220212_183048.mp4Video for the final round in the Sumo Car tournament
I and Basem Mosallam helped each other in designing the car in fusion 360 with great help from our interactors Amani Ayman and Ibrahim Raafat whose answered many questions from us during the process and replaced one of the yellow DC motors because it wasn't work and give us some missing component from our kit like ( DC Jack to terminal converter ) and helped us during the fabrication especially when Amani Ayman rechecked patiently the connections of my h-bridge controller until it works. thanks for them for the great help.
Overcoming Challenges
Overcoming Challenges
When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this assignment?
When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this assignment?
In Midweek Session
In Midweek Session
We divided into teams , I participate with Michael Henry in a learning activity to practice building simple electrical circuits
in Exercise 1: Power a "7-segment display"
I drive Michel to simulate the circuit in tinkercad
and we use Google Search to understand how a 7-Segment display "Common Cathode" works.
and we use one 220 ohm resistor instead of three resistors and build and simulate the circuit on TinkerCad then we Include one push button in the circuit so that when press the button, the display shows the digit “7”, and when you release the button, the display doesn’t show any digits and it works fine on tinkercad then I build and test the circuit on a physical breadboard and it works fine also.
in Exercise 2: Power an RGB LED so that it lights up with a Purple Color
Michel drive me to do the exercise.
first we use Google Search to understand how an RGB LED "Common Cathode" works.
we use one 220 ohm resistor instead of three resistors then simulate the circuit on TinkerCad
the circuit work fine in the tinkercad but when Michel build and test the circuits on a physical breadboard the red LED on RGB LED burnt because the we use one 220 ohm resistor in the common cathode leg instead of three 220 ohm resistors on each leg of the RGB LED.
our instructors Amani Ayman explained our mistake in this short video. :
video1282298855.mp4
7-segment display on tinlercad
7-segment on physical breadboard
RGB LED on tinlercad
RGB LED on physical breadboard
When i was assemble my hovercraft project First i used 4AA batteries to power the circuit but the batteries was too heavy and the hovercraft can't move due to its weight so i turned to use a 5V adapter to power the circuit and the hovercraft moves well but I want to make it move freely without the adapter wire. so I asked for help on slack and i have a replay from Mohamed Abowarda give me an image for 9v battery so I will use it in the next projects.
Hovercraft
Final Project
Final Project
How can you use the skills and knowledge that you've acquired this week in your final project?
How can you use the skills and knowledge that you've acquired this week in your final project?
I'll use tinkercad portal to design and simulate the final project circuit before i do it physically and i will use the experiences from this week to do the electronic circuit in the final project.
WOW!
WOW!
What is the coolest thing that you've learned this week? What is something that you will never forget from this week?
What is the coolest thing that you've learned this week? What is something that you will never forget from this week?
The coolest thing that I've learned this week and i will never forget it was how to make the H-Bridge circuit to control the DC motors
The coolest thing that I've learned this week and i will never forget it was how to make the H-Bridge circuit to control the DC motors
and How we use 8 Push buttons in 2 large breadboard to control the two motors of RC car to go forward , backward , turn left and right .
It was fantastic experience and a good team Work with Basem Mosallam.
H-Bridge
2 remote controls with 8 push buttons
Weekly Digest [OPTIONAL]
Weekly Digest [OPTIONAL]
Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.
Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.
Assignment Design Files
Assignment Design Files
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