During this stage you are likely to use 2D and 3D drawings and sketches which can inclue one point perspective and oblique views due to the speed you are able to produce them at and how easy they are to create.
Development of ideas stage
During this stage you are likely to use 2D and 3D drawings and sketches which can include two point perspective and isometric views as they show more detail from more than one side of the design. You may also make use of detail views to show small parts.
Manufacture stage
During the manufacture stage you are trying to communicate sizes and materials to the manufacturer. You may also communicate how the product is to be assembled and so orthographic and exploded drawings should be used.
Final proposal stage
For the final proposal most designers would use a fully renderedCAD model to present their final concept. (CAD= Computer Aided Design) They may also use CAD to produce a rendered image of their product within a simulated environment.
The different types of graphics you will come across include:
One point perspective
Two point perspective
Isometric
Oblique
DetailView
Orthographic
CAD model
Exploded View
scale model
Scale Model- a model made to a scaled size (Scale 1:2= half the size, Scale 2:1= twice the size)
mock up model
Mock Up- a model that helps to realise a shape in 3D. It has to look realistic but does not function as a working product.
prototype model
Prototype- a full-scale working model, made from the exact materials allowing for testing to be carried out.
Cad model
CAD Model- (Computer generated model) a virtual model drawn using computer software.
Vacuum Forming
Identifying Features:
Rounded corners
Tapered edges
Thin sheet plastic
No undercuts
Injection Moulding
Identifying Features:
A spruce mark (a protruding rough mark)
Ejector marks (round indents)
Tapered edges
Complex detail
Mould split lines (where the mould has joined
Rotational Moulding
Identifying Features:
Hollow plastic product
Mould split lines (When two halves of the mould have joined)
Die Casting
dentifying Features:
Solid metal product
Intricate details
Spruce marks
Ejector pin marks
Sand Casting
Identifying features
Poor surface finish (grainy)
Solid metal objects
Mould split lines
Designers have a responsibility towards the environment, especially when creating a product which will be mass produced. Designers must consider environmental impact of their designs and work with the manufacturer to ensure the product is sustainable. Designers should make recommendations such as:
Using recyclable materials
Reducing the amount of material used
Reducing the amount of parts
Designing the product for disassembly
The processes and materials used to manufacture and package a product can pollute the air, water and land. Manufacturers has a n environmental responsibility to eliminate pollution and strive towards clean manufacturing. This involves
Using non toxic materials
Optimised raw material use
Water reductions to create less waste
Airemission reductions
Solid and hazardous waste reductions
Transport and packaging reductions
Energy efficiency, and use of solar, tidal or wind power.