Prototypes

Whistle - Length

Whistle - Diameter 1

Whistle - Diameter 2

Whistle - CAD

Whistle - Close Up 1

Whistle - Close Up 2

During my first year of University, I had a lab session to create a working whistle. I created my whistle successfully as it has correct dimensions and it creates a nice noise, when blown, as shown on the video to the left.


Steps To Create It:

Placed the 100mm billet in the centre of the lathe and faced it off. To pilot the end of the billet, I used a centre drill bit. Then drilled a depth of 42mm with the 4.5mm bit and re-drilled the same length with a 6.5 bit. Then I turned down 65mm of the billet to Ø11.12mm with a feature 3.0mm from the drilled end of the billet, for the lips to rest on, by turning it 0.56mm down and 3.0mm in length. Then I removed the billet and cut the excess bit off using a hacksaw. After doing that, using the lathe machine again, I radiused the other end. Next, from the radiused end I removed 8mm in length and 5mm down using the milling machine. At an angle, I removed a depth of 11mm, for the wind hole, around 12mm from the drilled end, using the milling machine. Next with billet B, with Ø6.52 and 25mm of length, I filed the top of it to reduce the height to around 4mm. Then I fit billet B into billet A by hammering it in the wind hole and once it was in an appropriate amount I cut the excess of billet B with a hacksaw and filed the end to create a smooth surface. After marking the middle of the flat surface, I used a pillar drill to drill a Ø3mm hole and filed for smooth surface.


During my second year of University, I learnt how to program and run an Arduino UNO. As shown on the picture on the left I have sent appropriate data to the Arduino UNO, to control the servo motors speed and change its direction of rotation, between clockwise and anti-clockwise.

From the video above, I have sent another data involving a ultrasonic  sensor to measure the distance from the sensor to an object (which is my hand on the video). The data involves a program to rotate the motor. Using a ultrasonic sensor, I programmed it so when there is a distance less than 10cm, the connected motor would stop rotating.

I have also sent another program which changes the rotation of the motor. When the ultrasonic sensor is at a certain amount of distance or less, but I forgot to create a video on it.

The picture on the left shows a prototype of a chair, made from card. This design has normal sitting areas, which are also connected to seats with a working desk in front, coming from the top. This shows that I am able to create prototypes of ideas with limited access to high quality materials.

From the card prototype on the left, I was able to create a CAD design of the studying chairs by using the sheet metal tool on Fusion 360. This shows that I am capable of creating Computer Aided Designs on prototypes done from the past. This is another way of displaying cool ideas, which can be edited into something better.