Student introduction to technical drawing & design.

1. CADD 1
Introduction to Computer Aided
Drawing and Design

2. What is Design?
 Design is the translation of ideas into
something tangible.
 Sketch
 Outline showing main features
 Used to show something to be made or
accomplished.
 Design allows for the products and
services that we enjoy.

3. What is Technical Drawing?
 Technical drawing is the graphic
representation of an object or concept.
 Examples of technical drawings include:
 Schematics
 Graphic Communications

4. What is the Design Process?
 The Design Process is a systematic,
creative process for turning ideas into
real objects, products, systems, and
environments.
Idea Design Refine Decision

5. Steps of the Design Process
1. Identify the design problem
2. Identify the design criteria and constraints
a. Criteria: Must be included
b. Constraints: Limits to the design
3. Refine the design
4. Evaluate the design
5. Develop the product or system
6. Re-evaluate the final solution

6. What is a Design Brief?
 A Design Brief is a description of the
design problem which includes the
stated criteria and constraints.
 Usual Parts of a Design Brief
 Statement of the Problem
 Criteria and Constraints
 Statement of required Sketches and Drawings
 Evaluation of Design

7. Typical Required Drawings
 Orthographic: Three-views
 Top, Front and Right Side View
 Isometric: Pictorial View
 Three Dimensional representation, on a two-
dimensional surface
 Sectional
 Shows the inside view of a complex object
 Auxiliary
 Top view of an object at an unusual angle

8. Orthographic Drawings

9. Isometric Drawings

10. Sectional View Drawings

11. Auxiliary View Drawings