In the assembly of the air cannon, I realized that I needed to use different assembly techniques for different materials, for example, I could not use the fabric assembly method for the wooden handle, nor could I use the wooden handle assembly method for the spring part. After my personal experimentation and advice from my teacher, I finally determined how each part of the assembly needed to be done.

First, the handle, my handle is assembled with multiple pieces of wood, consisting of two 8 cm and two 6 cm sticks, with screws to form a hollow rectangle used as a place for the hand to hold. A 15 cm long and 3 cm wide cylinder has the same way to link the handle. Finally, the two middle hollow 3 cm pie-shaped wood mounted to the long cylinder is used to connect the fabric. I will cut out a 3 cm size hole in the very center of the fabric. On each side of a wooden cake and then the entire handle through the three items to play a fixed effect. The fabric is tied to the barrel body with a string. Finally, a hook is installed at the end of the handle to connect the spring to make the fabric flexible. A woodcutter and an electric screwdriver were used throughout the process.

No matter whether it is the handle, the barrel, and the spring rope connection are exactly as I originally envisioned. However, as an air cannon, it can do too little kinetic energy conversion. Even if you pull the traction device to the head, you can only hit a weak air potential energy.

My companion thought it had too little elasticity and only one spring rope to release much kinetic energy. My other companions also thought that the material I chose, the fiber cloth, contained too little elasticity and did not have any stretch, making the traction too stiff. According to my product prototype, I also found several holes in the fiber cloth, which were caused by improper handling during manufacturing. I think based on the above points, the material selection aspect is the main reason for the failure. I should have replaced the fiber arrangement with a fabric/material that is more stretchy, flexible, and not easily damaged by tension.

This is a paragraph for my capstone CER. It talks about a problem relay to SDG #3, #4, and #8, which the problem is covid-19. To talk about covid-19, I have 3 supporting question to answer in the text, they are about Economic, Education, and Health, you could found them in the text. Please enjoy.

In the last unite of products design we are trying to make a bluetooth speaker, we first use cardboard to check the size, and we cut it in wood form, and we are able to use painting and other technology to make our speaker. We also learn about different type of design and the type of design I had choose to make on my speaker is Art Deco, Art deco is a type of design using shapes and lines to make patten, and the colors are usually black and gold, but while I designing my speaker, I feel like to try new things and so I had add color green and purple base on the color black and gold, and it work out, it looks good, and I really like the colors I had add on the speaker, but the color gold seems like to turn out yellow and I think this might be a imperfect things in my design.

Here below is my final products.

Many of my electronic products, like mobile phones, computers, and iPad, when I am going to sleep at night, I will habitually put them next to the bed, and this leads to the fact that when I get up the next morning, I will I found that one of my electronic products is on the ground, sometimes the screen will break.

So I want to make a wall-mounted bag that can hold my electronic products, so that I can put the electronic products in it at night, making it more convenient for me. Considering the size of the leather, I am going to make a bag the size of an iPad

link of the photo :

https://www.google.com.hk/url?sa=i&url=https%3A%2F%2Ftw.creema.net%2Fitem%2F2687382%2Fdetail&psig=AOvVaw2WC9kISsAYHpHOXLuVYL7t&ust=1622509714235000&source=images&cd=vfe&ved=2ahUKEwjI-8fq3fLwAhW80IsBHZB6BTEQr4kDegUIARC6AQ

My Photographic project

The picture above is my odor detection monitor, its appearance is inspired by changing the appearance of the mini arcade game console. There are three object on the front, namely the main screen, the switch button and the start button. First, let me explain the function of the main screen. The main screen will display the source and its name of the smell that detected by this machine. The second is the switch button. You can see two arrows pointing in different directions on both sides of the machine. This is the switch button. Because this machine has a save function, it can save up to 99 scent sources and names at the same time, so when you want to see other saved scents, you can use the switch button to switch left and right to find a previously recorded scent. The last thing that appears in the front is the start button. First of all, it has the function of turning on. When it is off, you can turn it on by long pressing. After turning on it, you can tap it to start detecting odors. When you tap it again, it will display the detected odors on the main screen. Of course, it also has the function of shutting down. Just like starting up, when it is turned on, long press the start button, it will switch to standby mode and will not continue to consume power.

The picture above is the back of this machine. It can be seen that it has a tiny strip-shaped opening on the back. It has the function of inhaling the smell into the machine. After inhaling, the inside of the machine will start to analyze the source of the smell and compare it with the database. Finally, the pictures and images in the database are uploaded to the home screen.

There is an opening directly above this machine, which has two main functions. The first one is charging. On the main screen of this machine, there will be the remaining power of the machine. When the color of the power changes to red, it means that the power of the machine is very low，and you need to charge in time, you can charge it below. Its second function is to insert a dedicated US, the picture below shows the appearance of a dedicated USB

The USB can be used as an export record, that is, when you run out of 99 storage spaces, you need to add some space so that you can continue to use the unit. The generated images and smell names can be used as a computer or any collection of computers. Of course, in the electronic device, if it is no longer needed, it can be deleted directly.

The picture below is what it looks like when charging / updating data

The picture below is my source of inspiration

This is my Early Humans and Us Thinglink Project about how Technology gives them a better chance to survive.