Week 14

 This week, we learnt about product sketches. We learned that sketching or drawing is a key technique for creative expression in product design. It is considered the principal approach through which product designers externalise a product’s design concepts. Sketches or drawings enhance understanding and provide visual clues for possible further refinements and revisions of the product.

First off, we start with warming up by drawing straight lines, curves, circles and ellipses. We were then tasked to draw one-point perspective drawing of a milk carton. A one-point perspective drawing means that the drawing has a single vanishing point, usually directly opposite the viewer's eye and usually on the horizon line. All lines parallel with the viewer's line of sight recede to the horizon towards this vanishing point.

We were then tasked to draw a two-point perspective drawing of a book. A 2-point Perspective Drawing is defined by 2 vanishing points that represent 2 convergence points and infinite distance away. 

Afterwards, we were tasked to do a product sketch of a\our chemical product which is a cooling backpack. We used a two-point perspective drawing for our product sketch.

Lastly, we learned about design specifications. A design specifications provide product design teams with the information they need to build out new features or functionality of a product. This is the product specification table for our chemical product.

Product:	Cooling Backpack
Aspect	Specification Metric (or Quality)	Quantitative Value
Physical	Easy to carry	-
	High Capacity	30L, 45cm x 31cm x 15cm
	Lightweight	Less than 1kg
Functional	Rechargable	12 hours per charge
	Multiple Fan Speed Settings	High, Medium, Low
	Silent	Below 35 dB
	Water  and Dust Resistant	IP45
	Sturdy	Drop Resistant
	Easy to use	-
	Minimum Startup time	Less than 10 Seconds
	Can Transport Items	Up to 20kg
	Strong Fan Power	Up to 80 CFM
Others	Cost Effective	Below $200