Week #5 - Journal

Hawweha ^_^

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)

This week's assignment requirement was to use 2 output actions switched on and off using ON/OFF switch. So, I thought of making a cool small fan using dc fan with LED as a sign when it's on.
My inspiration for the design was the bladeless fan so I decided to make the outer shape looks like it but it's not a real bladeless fan as they don't work the same way and obviously, mine has blades =D

Tool Chain

Which software/machines/materials did you use in the assignment? Why?

software:

TINKERCAD

I used tinker cad to test and simulate the circuit before prototyping it physically to protect the electronics from burning or any other problem

tools and materials:

From left to right =D:
1- Compass
2- Hot glue gun
3- Cutter
4- Pen
5- Scissors
6- Cardboard
7- Ruler

electronics:

5v dc fan

green LED + 330 ohm resistor

on / off switch

5v adapter to power the components

dc jack

small breadboard to fit in the enclosure

crocodile wires

male - male jumper wires

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?

First, I simulated the circuit on TINKERCAD using:
1. power supply set to 5v because the fan I used works on 5 v and the LED works on about 2 v and I added 220 ohm resistor to protect the LED.
2. dc motor to simulate the fan
3. green led
4. push button as an on/off switch
5. resistor 220 ohm for the led

I connected the components in parallel " to make the components work with full functionality using 5v without dividing the AH " as shown in the picture

check the simulation video:

bandicam 2022-08-27 12-58-51-966.mp4

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?

I needed more wires than the simulation on tinkercad to fix the components in their places in the enclosure

This is how I used crocodile wires to connect the led and put it where I need

After making sure that the components work perfectly, now it's time for the enclosure. I started by taking the size of the fan on the cardboard

using compass I made larger circle like the bladeless fan

I used the breadboard to define the size of the bottom part and make it a bit larger than the breadboard

I started to place every component in it's place like the led and the switch then mark around them to cut it off later

Now, it's time to cut everything off using cutter and scissors

this is how the front part looks like

using the breadboard again I made a small piece as the bottom of the enclosure and also a bit wider than it then I used long cardboard to cut the same wide as the bottom but long to make the sides

I started peeling one of the layers to make it bend easily and smoothly

make sure u don't peel chipsy cardboard layers =')

Finally.....

using the front I drew similar part but with extensions on the sides

I used hot glue gun to join the side to the front

I then glued the bottom

before placing the back I started placing the components
note: I needed to unwire some components to place them then rewire them

After placing the components
I made sure that every wire is away from the other to avoid making short circuit. I could've used tape to isolate the wires better.

I glued one extension that I made on the sides of the back and made the other free moving just I tuck it in.
I also made a hole for the dc jack

I connected the 5v adapter to the dc jack to power my circuit

with the help of my Papar mobile holder I held my mobile to take the shots and the video

WhatsApp Video 2022-08-31 at 5.50.22 PM.mp4

Overcoming Challenges

What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)

It was a challenge to place all the wires in the enclosure without making any wire touch the other or losing track of the wire.
I overcomed this by tying every wire to shorten it. and for better isolation use tape on the exposed parts.

* red wire wasn't tied yet

Final Project

How can you use the skills and knowledge that you've acquired this week in your final project?

IT helped me with imagining how to place the components in my final project and reconsider that I need more space than the one I made in my prototype to make sure every component will fit

Assignment Design Files

Hawweha on tinkercad

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