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Year 8 · Design and technology · CAD and electronics · Lesson 1

CAD and CAM

CAD and CAM in design and technology: software and machines (laser cutter, 3D printer, CNC), isometric and orthographic drawing, and evaluating advantages and disadvantages.

Whiteboard video lesson: CAD and CAM

18-minute video lesson

Teaching, worked examples and 20 practice questions solved step by step.

Watch free for a month

What your child will learn

  • Define CAD, CAM and CNC
  • Name CAM machines and what they do
  • Compare isometric and orthographic drawing
  • Evaluate the use of CAD/CAM

The method

  1. What it is.
  2. Advantages.
  3. Disadvantages.
  4. Judgement.

Key words: CAD, CAM, CNC, laser cutter, 3D printer, isometric, orthographic, prototype.

Worked examples

The first three practice questions from the lesson, with every step.

Question 1

What does CAD stand for?

  1. Step 1: Computer-Aided...

Answer: Computer-Aided Design

Question 2

What does CAM stand for?

  1. Step 1: Computer-Aided...

Answer: Computer-Aided Manufacture

Question 3

Name two CAM machines.

  1. Step 1: Cut, print

Answer: laser cutter and 3D printer