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Week 14

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Introduction For this week’s ICPD lesson, we have learnt about design specifications as well as sketching using free hand. This lesson is separated into two parts, part one being “Product Sketches” and part two being “Design Specifications”. Part One: Product Sketches Sketching is important in prototyping as it is beneficial because it aids in the validation of assumptions, the early detection of problems, the brainstorming of ideas and the conduct of early usability testing. Before anything, we were each given 5 sheets of paper and were instructed to practice on our free hand drawings by drawing different shapes and lines. We then proceeded to draw objects using 2 and 3 point perspective. Figure 1: Sketching Circles Figure 2: Sketching Ellipses Figure 3: Sketching curves Figure 4: Sketching Straight lines Part 1.1 One Point Perspective Part 1.2 2 Point Perspective Book Drawing Part 2: Design Specifications As for the next part, we learnt about “Desi...
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Week 13

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Introduction For the lesson in week 13, we learned about operating principles and mechanism designs. Operating designs are essentially all about How Things Work. Mechanical, electrical, chemical, and magnetic functioning principles are used to design all devices, apparatus, and equipment. There are many examples of operating designs. For starters, the most basic and everyday need is coffee. How is a cup of coffee made? Hot water is introduced to the coffee beans and then it leaches the soluble solute from the coffee beans, making coffee solution or coffee. Our Chemical Product Operating Principle Our chemical product principle is based on the transfer of heat through conduction and convection. The water at the bottom gets heated up by the heating source at the bottom of the heater by conduction. As the water at the bottom heats up, it expands and thus becomes less dense. As the water at the bottom becomes less dense, it rises as the cooler water at the top sinks because it is de...
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P4

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Practical 4 Introduction: For this practical session, we conducted the practical once again in the FabLab in Singapore Polytechnic. During that practical, we were given 2 hours to construct a game or toy using cardboard. We were able to make a fully functional and working toy using the different cardboard joineries that we learnt from the previous practical (Practical 3). We were then given 5 minutes to present our toy. We were also given 2 ice cream sticks each which represented our vote, to vote for the best toy that we like. The toy that we created was a fully functional and easy to play “Air Hockey” (Figure 1), that is made out of cardboard. Figure 1: Air Hockey Thought Process The team wanted to create a fairly easy and fun filled game for the Primary 4 students. Hence, why not the class “Air Hockey” that everybody loves to play at the arcade? We decided to bring this idea and construct it for this practical assignment. The components that we have created to form this f...
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Week 13 (P3)

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CP5065 Week 13 Report DCHE 2A/01 Group 1 Garage Engineers Introduction In week 13, for our ICPD lab, we learnt about the different kinds of joinery at the FabLab at T11C. The lesson taught us how to make the different kinds of joinery that we can use, to hold and strengthen our cardboard in order to make strong and durable cardboard sculptures etc. For example, we had to follow a visual board created by the lecturers and try to replicate it to the best of our abilities (Fig 1). After the first assignment, we were given about 2 hours to create whatever we like using cardboard. However, we had to include the joineries that we learnt. For our group, we created a “McDonald’s Meal” (Fig 2), while the other groups created a Helicopter etc. Pre-session preparation: Short notes on corrugated cardboard Corrugated cardboard is commonly found in our daily lives. It consists of three layers where there is a piece of a corrugated material which has an inner and outer layer of paper liners. A...
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Week 12

Reflection: We have recently received our 3D printed name tags that were designed during a previous lesson. When asked about the quality of the name tag, we have observed that the name tag was slightly fragile and seemed like it could break easily if forced is being applied on it. This is because the name tags had to all be printed under a short time hence decreasing the printing time which also decreases the product's quality. In week 12's lesson, we have learnt that there are many factors that contribute to the 3D printed product's quality. Factors such as nozzle temperature, infill density, thickness, layered height and many more affects its quality. Our group has been assigned to research and present about Additive Manufacturing and 3D Printing Technology. Additive Manufacturing Additive Manufacturing refers to a term that comprises of many different technologies. Such technologies consist of 3D Printing, Rapid Prototyping and Direct Digital Manufacturing. Additive...
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Week 7

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In week 7, the team had learnt to use the Fusion 360 software to create virtual models, and learnt the myraid number of functions that it offers. This is also known as Computer-aided drafting and design or CADD. IT is the use of software to draw and design physical components or to layout processes. With CADD, shapes and lines can be drawn easily and quickly, content can be easily copied, edited, saved and shared. CADD software also allows accurate calculation of dimensions and more advanced software can even accurately estimate the kinds and amount of materials used or the length of manufacturing time, which facilitates budget planning. It is hence beneficial for a product design to know how to use a CADD software. From that lesson, we have created our very own keyring, constraints as well as our very own photoframe. Figure 1: Photoframe Figure 2: Keyring Figure 3: Constraints To summarise, CADD has been a very fun lesson and the team is looking forward to learn more te...
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Week 6 (Activity 2 & 3)

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  ACTIVITY  2   Chemical Product Life Cycle    Chemical Product : Portable Water Heater     1) Extraction      Since our product is a portable water heater, commonly used materials required are copper and stainless steel.  Copper is obtained by  ore that is removed from the ground in either open pit or underground  mines. Stainless steel is  consisting  of  raw materials of nickel, iron ore, chromium, silicon, molybdenum, and others, are melted together.   2)  Manufacturing & P roduction   “ Manufacturing”  refers to the making of products  in factories by machineries   on  a large  scale . This process change s individual pieces parts, recycled materials even raw materials obtained by extraction,  into newly functional products.  Stainless steel is an alloy made by melting the raw materials that were extracted such as iron ore, chromium, silicon   a...
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