Final Project Journal

Project Ideation

1- Tell us about the idea of your project. Why do you care about this? What were you inspired by? Include images and videos of similar projects

WhatsApp Video 2022-08-15 at 2.44.04 PM.mp4

The interactive unit that reacts to the sun's movement and climate changes can also use as a decoration unit

Double facade act as filters between the indoors and the outdoors, facilitating the users by providing appropriate shade, sunlight, ventilation, and a decorative element.

Dynamic façade ,also known as a responsive façade

It is a building exterior that can change in response to its surrounding environment to maximize its performance. This can help control the interior environment within the building, and so minimize the energy consumption of building services systems.
I care about this project as my major specifically about how to make a comfortable place for people, and also The dynamic facades act as filters between the indoors and the outdoors, facilitating the users by providing appropriate shade, sunlight, ventilation, and a decorative element.

Project Construction

2- Explain the CAD process of your project. How did you use the software to design your project? (List the softwares/tools/materials...etc that you used)

Design process

I started the design process with the first part of my project which is the joint mechanism by:

Dividing the mechanism into parts to help me understand the mechanism.

For designing the project and sketching the mechanism parts, I used Fusion 360

1st the fixed disk part

I started with sketching a regular hexagon shape as a guideline for the project with a dimension of 15cm

Then sketching the disk of 10 cm as" the servo will be fixed on it & the servo will take a distance of 5cm from the center" on the guidlines

Extrude the disk by -5cm and the tubes by 15 cm as then the 2 clips will be fixed on it

I downloaded the servo from the GRABCAD website for the electronics models.

then I used the projection tool " the shortcut is p" the make a circle as a hole for the servo horn which to reach the movable disk and fix it with a joint

2nd The moving disk part

Then sketching the disk of 6 cm and the tubes with 5mm on the same guidelines of the fixed disk

Extrude the disk by +5cm and the tubes by 5 cm as then the moving clip will be fixed on it

Make a revolved joint for simulation.

Then I used the projection tool the make the 2 holes for the screw to fix the servo to rotate the moving disk.

Then extrude this part to reach the surface of the fixed part so the servo will rotate easily

WhatsApp Video 2022-09-27 at 03.28.38.mp4

To make sure the servo is fixed in the part , Download the nut to put it in the part

Then made combine ( cut)

3rd The clips parts

Making the moving clip with dimensions based on the distance between the two tubes, and the small fixed clip half the distance

Extrude the parts by +5cm
Make a revolved & fixed joint for simulation.
Then make the other 6 parts of the project
Making a hole in the clip to fix in it the wood band
Then for making sure the moving clips won't separate from the parts I made a cap and made a gap between both of them to make it rotate easily

WhatsApp Video 2022-09-25 at 03.44.27.mp4

Simulation

By using the contact set , I managed to simulate the motion

Autodesk Fusion 360 (Personal - Not for Commercial Use) 2022-09-25 03-46-53.mp4

Simulation vedio

Frame

Electronics box (the enclosure box which will include the Arduino, wiring , buttons and beard board )

Front profile I used the axis of regular hexagon as guidelines for the frame and made holes for fixing the bands

The side profile with width 6 cm as I will put electronics in the box at the base and the beard board width is 5cm

top for fixing the servo i make that hole

Back side for fixing the servo I made a rectangle and use a projection tool to project the servo

Make to holes for fixing the servo with screws

Assemble

The back of the box

The front view

Fixing the bands ( shading device) in the Frame

2 parts like than main clip part

These parts will be fixed in the frame by screw

The assemble of all the parts together

3- Explain the fabrication process of your project. How did you use the machine to fabricate your project? (List the softwares/tools/materials...etc that you used)

3D printing

The first part

Prepared the design:

To prepare the file, I exported the rod STL from fusion 360

I opened it on Ultimaker Cura software & I set up the settings ( 0.20mm Normal _ Filament: Generic PLA _ Printer: Prusa i3 MK2S _ Infill: 20% _ support: everywhere _ Adhesion: No, as it contains a cylinder with a flat surface )

Exported the G code file & named it (44 g - white - 4hr 25min -0.2mm. g code ) and I transfer my G-code to the SD card and put it into the machine.

I cleaned the 3D printer using alcohol, I turned on the 3d printer.

I wanted to change the filament to a white one ( unloaded the filament then, we set the filament and go load the filament from the menu), I cut off the extra part of the PLA.

WhatsApp Video 2022-09-27 at 09.07.58.mp4

WhatsApp Video 2022-09-27 at 09.10.35.mp4

Finally

Then Removing the supports

The second part Moving disk

Ultimate cura

Setting \ Filament: Generic PLA _ Infill: 35% _ support: touching plate_ Adhesion: No, as it contains a cylinder with a flat surface )

Exported the G code file & named it (44 g - white -1hr 14min -m. g code ) and I transfer my G-code to the SD card and put it into the machine.

After fabrication

The third part clips fixing the rod parts in the frame

Ultimate cura

Setting \Filament: Generic PLA _ Infill: 35% _ support: no

Exported the G code file & named it (9 g - white -1hr 7min -m. g code ) and I transfer my G-code to the SD card and put it into the machine.

WhatsApp Video 2022-09-27 at 09.50.30.mp4

Laser cutting

The frame

Prepared the design:

Imported the sketch from fusion 360 ad DXF file

I used the LaserCad software to prepare my design
This design contains the cut

Settings: for Cut - speed: 20- power: 70

LaserCad software

The frame exceeds the 60cm sheet so I decided to cut the frame into two parts

The Rods

Prepared the design:

It is a rod with live hinge

Imported the sketch from fusion 360 ad DXF file

I used the LaserCad software to prepare my design
This design contains the cut

Settings: for Cut - speed: 20- power: 70

WhatsApp Video 2022-09-28 at 14.31.52.mp4

I used 3.5mm wood for this rod to make sure it won't break

I made 12 parts

Project Electronics & Power Management

4- Describe your electronic circuit. What are the input and action components? What is the function of each? How do the components integrate together to form your smart system? (List the softwares/tools/components...etc that you used)

The project has two modes one for manual and the other for automatic mode for control.

In the manual mode; the user will turn on or off the servo to rotate the shading device

The Automatic mode: Starts by taking input from the TEMP. and LIGHT sensors It will turn on or off the servo to rotate the shading device.

To control the modes; there will be a slide switch to modify the modes and an on/off switch to open or close the whole device.

In the nice to have Featured: The on/off switch will be transferred in its off mode to the graphical control via mobile app.

The technical components:

Input component; The LIGHT &Temp. sensor, on/off switch, and the slider switch

The output component: The action components (the servo will close or open the shading device according to the sensors readings )

The brain; is the Ardunio UNO,

power management: 2A 9V adapter for Arduino UNO & 5V Power-supply or Adapters for the servo.

Main component:

light sensor, Temp sensor, black servo, slide switch, on / off switch.

Main component

Wiring simulation on Tinker cad

wiring description

Parts ( LDR sensor , servo , temp sensor, slide switch , push button )

for the LDR & temp. senor connecting the GND with the -ve on a breadboard, the VN with the +ve in the breadboard, and the third pin in Arduino.

for the push button connecting one terminal with the +ve of the breadboard and the other with a pin in Arduino

for the slide switch connecting one terminal with the +ve, -ve of the breadboard and the other with pin in Arduino

for servo connecting the pin in Arduino and the other 2 in the breadboard

5- What is your power source? How did you select the suitable power source for your project? (List the softwares/tools/components...etc that you used)

From the data sheet of each of the devices

black servo: 5v is used to be able to supply high current and voltage to the servos, as two motors' load current is 170 mA and one is 350 mA,

-IR sensor: 5VDC Operating voltage, 20mA supply current

-TEMP. sensor: 3.3V to 5V DC operating voltage, Operating Current: 15mA.

In conclusion: The power is adaptor 5V externally and 9v for the Arduino

The black servo not connecting directly to the arduino

Project Programming

6- Describe the code of your project. How did you program each function of the project?

Sequence Diagram

The first thing was a switch to control the automatic & manual modes according to the reading of sensors

" if the automatic mode is on "

determine the sensor's reads
rotate the servo according to this read

"if the manual mode is on "

neglect all the reads
rotate servo

Coding Arduino IDE

First:

Download the DHT11 library for temp. sensor and include it
Searching for The code of servo motor

Second:

Define the servo (#include <Servo.h>) and DHT (#include <DFRobot_DHT11.h>) and their Arduino pins
The servo position
Define the pins for:

LDR

1 Slide switch

" selector" (Represents the Automation Switch)

ON/OFF Switch "servo Switch"

Third:

Void set up :

choose the pin mode ( input, output, pullup)

Fourth:

the sequence of the code as I showed in the Diagram
I used the IF condition for the modes first then for the LDR& temp. sensor to rotate the servo

Fifth:

The Manual mode

I used the IF condition to check the servo switch "push button switch" and rotate the servo

Sixth:

store the servo position

Project Integration & Testing

7- Demonstrate with text and visuals how did you integrate the project’s modules together? What are the testing results? (Include a Demo video separately, showing a proof of functionality)

The final simulation on fusion

First, I made the joint part

The main part parts before assembling

Assembling using the screw to make sure it will move from it's axis

WhatsApp Video 2022-09-29 at 11.54.23.mp4

finally

Test manually

WhatsApp Video 2022-09-29 at 12.30.01.mp4

finally

Test with the ldr sensor and servo

Second, The box and assembling all the parts together

Assemble the box

with screw and tabs

Fixing the main disk in the top of the box

assembled by screws

Fixing the servo in the back of the box.

assembled by screws

Fixing the servo in the back of the box.

assembled by screws in fixed rod

Place for the circute

At the back of the box

Place for adaptor

At the side

Place for switches

At the other side

Finally ,All the parts are fully integrated as one assembly

final product

The fixed clips

WhatsApp Video 2022-09-29 at 21.29.16.mp4

The project worked

As the main idea was to turning on or off the shading device by servo

WhatsApp Video 2022-10-05 at 00.01.28.mp4

The manual mode

using push button

WhatsApp Video 2022-10-05 at 00.01.05.mp4

The automatic mode

sensing the light (LDR sensor) and turning on the louvers

Sharing & Collaboration

8- 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?

I asked for feedback and help a lot from my instructor Ahmed Khaled

I wanted to modify on geneva stop mechanism but He helped me choose the suitable mechanism for the project then we choose the snapping mechansim

Autodesk Fusion 360 (Personal - Not for Commercial Use) 2022-09-25 03-46-53.mp4

I asked for feedback on how to make sure the moving part will not separate from the device and he said we have to print the whole mechanism together and make a cap to fix it in it's position

Autodesk Fusion 360 (Personal - Not for Commercial Use) 2022-09-25 03-23-05.mp4

My mate Mariam Mostafa suggested a notebook cover as a material for the simulation of the shading part and it was a good idea as I searched on google and found Mylar sheets \Polyester film sheets but i didn't know where to find it

Overcoming Challenges

9- 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 project?

I wanted to print the rod part but when I tested it , it broke

so I decided to make the rode with flexible wood of 3.5mm

WhatsApp Video 2022-09-28 at 14.52.58.mp4

I had i problem fixing the servo inside the moving disk so by making extrude and two holes and also making a place for a nut inside it to make sure it will be fixed finally I managed to fix it

I printed the mechanism part ( fixed disk and all the clips ) at the same time

As, the joint between the disk and the tube joining between the two clips was weak and the tube was 5mm radius it broke

Solution I decided to remove all the parts

Then fixing the parts with a screw but not fully fixed to work as a revolved hinge

The large scale project I had a problem that the wood sheet was 40 *60 and the frame of my project was 66 *58, so I decided to cut it in half to fit the sheet and connect them together used super glue as I didn't want to use screw because it will make the view not good

The frame was too light to stand the project so I decided to decrease the scale

Future Work

10- If you had more time, what is one thing you would change/ Do next in your project?

I will add a filter for the LDR sensor so the shadings device work according to how high the light intensity will be
I will add a white Along LED light strip along the band part.

so, the light will be emitting especially at night, so it will be useful at day & night and gives a better view at night.

I wanted to change the flexible wood with hard PLA material for the 3D printing as Ultraviolet light can change wood's color and damage it , and it is not the suitable material used for shading

I would complete the project I made which was on a large scale

Final Project Design Files

Tinker cad simulation

Frame( dxf )

mechanism 1 (stl)

code ( Arduino)

flex rod ( dfx)

Revolved circle (stl)

Clips fixed in frame

snapping facade ( fusion )

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