Intro

 hi everyone, my name is Jeremy Wong. I am very interested in the laser cutting that we are about to learn for this module, as I did not expect that we would be learning about design techniques/methods, as I imagined that this course would be full of theory modules.


Comments

Post a Comment

Popular posts from this blog

Project Development Blog Entry

Image
hi everyone!!! In this page, I will be documenting my team's project development. 1. Our team's Chemical Device The objective of our team's chemical device is to stop the accumulation of carbon monoxide (CO) in houses, and help vent out the toxic gas before it reaches a lethal level. In rural areas of Vietnam, people still make use of traditional fireplaces, and if they burn charcoal or wood in an area without proper ventilation, it can lead to the accumulation of carbon monoxide, which is deadly if it reaches too high of a concentration. My team's chemical device is a CO detecting system that is linked to a ventilation system. When the CO detector detects carbon monoxide in a high concentration, it will produce a signal that turns a red LED on, which also turns on a fan to vent out the air, as well as turning a gear that opens a window to let even more air out, thus stopping the accumulation of the carbon monoxide gas. The signal will also produce a loud buzzer noise t...
Read more

Design for Experiment (DOE) Blog Entry

Image
Case Study When popcorn is made, there often remain corn kernels which are unpopped, even if the majority of the rest of the corn kernels have popped. To find out what factor causes the most impact on the loss of popcorn yield, three factors were identified: Diameter of bowls to contain the corn, 10 cm and 15 cm Microwaving time, 4 minutes and 6 minutes Power setting of microwave, 75% and 100% 8 runs were performed with 100 grams of corn used in every experiment, and the measured variable is the amount of "bullets" formed in grams and data collected are shown below: Factor A = diameter Factor B = microwaving time Factor C = power Run order A B C Bullets (grams) 1 + – – 3.68 2 - + – 2.68 3 – - + 0.74 4 + + - 1.68 5 + – + 0.95 6 + + + 0.32 7 – + + 0.68 8 – - - 3.12 Full Factorial From the graph, it can be seen that Factor C, the power, has the largest impact on the number of bullets formed. Factor B, the microwaving time, has the second largest impact on the number of bullets f...
Read more

Gears Documentation Blog Entry

Image
hi everyone, in this page, I will describe: The definition of gear module, pitch circular diameter and the relationship between gear module, pitch circular diameter and number of teeth. The relationship between gear ratio (speed ratio) and output speed, between gear ratio and torque for a pair of gears. How I can design a better hand-squeezed fan, including the sketches How my practical team arranged the gears provided in the practical to raise the water bottle, consisting of: Calculation of the gear ratio (speed ratio) The photo of the actual gear layout. Calculation of the number of revolutions required to rotate the crank handle. The video of the turning of the gears to lift the water bottle. My Learning reflection on the gears activities. These are the definition of gear module, pitch circular diameter and the relationship between gear module, pitch circular diameter and number of teeth: Definitions Gear Module: Gear module refers to the size of one teeth on the gear, with the unit...
Read more