CP5065-2022-2A01-Kwek-Jia-Tong

We were taught about Operating Principle and Mechanism this lesson. There are two definitions for mechanism. In chemistry, Mechanism is the fundamental chemical processes involved in or responsible for an action, reaction or other natural phenomenon. In Engineering however, Mechanism refers to the combination of rigid or resistant bodies, formed and connected so that they move with definite relative motions with respect to one another. More simply, it is something that transforms forces and movement into a desired set of output forces and movement. We are going to be using the definition for engineering as this is chemical engineering after all.  An example of a essential mechanism in functional prototypes are ratchets. They lock in one direction, allowing them to tighten without fear of literally "going backward." Example: Cable ties. After learning about this, we were tasked to design a ping pong ball launcher with the following guiding questions: What is the mechanism that...

In this post, I am going to be talking about Practical 5. In practical 5, we form pairs and were tasked to do the egg drop challenge. We were asked to design and make a device that a raw quail egg to survive a drop of 2 meters. There were a few requirement that we had to follow:  The device must be entirely 3D printed and does not require any non-3D printable parts. Requires minimal post-processing & make efficient use of material My first thought after looking through this was that it was going to be difficult and I was right but at the same time this entire journey has been quite fulfilling as well. After some discussion of how to start about designing it in fusion 360, we decided to go in this order. Where we will first make an egg then create a mold (box) to hold the eggs in. After that start creating the arch and then the latch for the box.   Here is the sketch of our design: Reason why we design it like that The outside of the design covers the box, something li...