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# CHAPTER 3 REVIEW PowerPoint PPT Presentation

CHAPTER 3 REVIEW. What are the 7 steps of Engineering Design Process ? Define the problem Research the problem Develop possible solutions Choose the best solution Create a prototype Test and evaluate Communicate R edesign. CHAPTER 4 BEYOND WORDS. CAD.

CHAPTER 3 REVIEW

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### CHAPTER 3 REVIEW

What are the 7 steps of Engineering Design Process ?

• Define the problem

• Research the problem

• Develop possible solutions

• Choose the best solution

• Create a prototype

• Test and evaluate

• Communicate

• Redesign

## CHAPTER 4BEYOND WORDS

Computer-Aided Design, computer programs that allow engineers to create precise drawings of their design ideas.

### SolidWorks

Software program that allow engineers to construct a model in three-dimensional.

### ORTHOGRAPHIC DRAWING

Two-dimensional representation of a 3-D object using views of each side of object.

### OBLIQUE DRAWING

Front side of the object appears flat in the picture plane and the side and top of the object are a 45-degree angle to the horizontal lines of the front side.

### VANISHING POINT

The parallel lines appear to converge on an imaginary point on the horizon is call the vanishing point.

### PERSPECTIVE DRAWING

The lines of the object that move away from the viewer converge on an imaginary point

### ISOMETRIC DRAWING

All vertical lines are drawn vertically, but all horizontal lines are drawn at 30 degree to the horizontal.

### SCALE

Ratio of the size of an object in a drawing to the size of the object in real life.

### METRIC SYSTEM

System of measurements in which all of the units are based on multiples of ten.