Week 14

This Blog: Reflection on Product Sketches and Design Specifications

Practice:








One-Point Perspective:

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.

3 rules for One Point Perspective Drawing:
- All horizontal lines are parallel to the horizon line.
- All diagonal lines only intersect the horizon line at the vanishing point.
- All vertical lines can intersect the horizon line anywhere.

Step 1: Draw a horizon line
Step 2: Draw the vanishing point
Step 3: Draw a simple shape anywhere on the paper. Either above or below the horizon line.
Step 4: Draw a line from the vanishing point to each corner of the shape. 
Step 5: Draw a horizontal and vertical line to form the sides of the shape.







Two-Point Perspective:

3 rules for Two-Point Perspective Drawing:
- All horizontal lines are parallel to the horizon line.
- All diagonal lines only intersect the horizon line at the vanishing point.
- All vertical lines can intersect the horizon line anywhere.

Step 1: Draw a horizon line
Step 2: Draw 2 vanishing point
Step 3: Draw a simple shape anywhere on the paper. Either above or below the horizon line.
Step 4: Draw a line from the vanishing point to each corner of the shape. 
Step 5: Draw a horizontal and vertical line to form the sides of the shape.





Design Sketch: Self-Cooker


2-Point Perspective, with vanishing points


2-Point Perspective, without vanishing points



Design Specifications:

Product: Self-Cooker

Aspects

Specification Metric (or Quality)

Quantitative Value

Physical

Lightweight

<5kg

Compact

30cm(L) x 32cm (D) x 38cm (H)

 

 

 

Functional

Temperature Resistant

-10°C to 700°C

Sturdy

Able to withstand impact force ≤ 333N

Easy to use

-

Minimal Setup time

<30mins

Chemical Resistance

(Soap, Water, etc.)

A

Non-toxic

Food Safe

Others

Inexpensive

<$400

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