Communication Of Design Ideas
Overview
A drawing is not a picture of a product. It is an instruction, an argument or a question, depending on who is going to read it. A sketch shown to a client is asking is this the right idea? An exploded diagram in a flat pack box is saying this part goes here, this way up. A third angle orthographic working drawing is saying make it exactly this size, and it is the only one of the three that could be taken to court. Choosing the wrong kind of drawing is not a matter of taste; it is answering a question nobody asked.
This lesson covers every technique the specification names for developing, communicating, recording and justifying design ideas: freehand sketching, isometric and perspective; two and three dimensional drawings; system and schematic diagrams; annotated drawings; exploded diagrams; working drawings in third angle orthographic projection using conventions, dimensions and drawn to scale; audio and visual recordings; mathematical modelling; computer-based tools; and modelling by working directly with materials and components. This topic was worth sixteen marks on the specimen paper, more than any other, and twelve of those marks were for drawing rather than writing. It is examined in Section C of Paper 1.
Objectives
- Develop, communicate, record and justify design ideas using a range of appropriate techniques such as:
- freehand sketching, isometric and perspective
- 2D and 3D drawings
- system and schematic diagrams
- annotated drawings that explain detailed development or the conceptual stages of designing
- exploded diagrams to show constructional detail or assembly
- working drawings: 3rd angle orthographic, using conventions, dimensions and drawn to scale
- audio and visual recordings in support of aspects of designing: e.g., interviews with client or users
- mathematical modelling
- computer-based tools
- modelling: working directly with materials and components, e.g., card modelling, producing a scale model, constructing a circuit using breadboard.
Mind map
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Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Communication Of Design Ideas. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- In an isometric drawing, the two receding axes are drawn at what angle to the horizontal? A. 15 degrees B. 30 degrees C. 45 degrees D. 60 degrees Answer: B
- In third angle orthographic projection, the plan view is placed A. above the front elevation. B. below the front elevation. C. to the left of the front elevation. D. anywhere on the sheet. Answer: A
- A drawing is labelled 1:2. This means the drawing is A. twice full size. B. half full size. C. full size. D. one fifth of full size. Answer: B
- Which line type is used for hidden detail on a working drawing? A. Continuous thick B. Continuous thin C. Dashed thin D. Long-dash dotted thin Answer: C
- Which drawing type would best show a customer how to assemble a flat pack shelf? A. A two-point perspective drawing B. An exploded isometric diagram C. A circuit diagram D. A sectional view Answer: B
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