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Year 7 - Design and technology

CAM, automation and laser cutting

Prototypes with mechanisms: robotics and automation

Unit Summary

Pupils will model with paper and boards and learn about sources and stock forms. They will develop 3D computer-aided design knowledge and skills, applying this by designing and simulating mechanical systems using TinkerCAD.

Lesson Summary

You will learn to prepare and transfer a file for laser cutting.

Key Notes

  • Laser cutters use concentrated beams of light to cut or engrave materials, requiring precise vector files.
  • Designs must be lowered through the Tinkercad workplane before exporting.
  • Laser cutters must be used with extraction systems to remove harmful fumes and ensure safety.
  • Efficient use of materials can be achieved through tessellation, which reduces waste by tightly arranging shapes.

Vocabulary To Learn

  • CAM: computer-aided manufacturing
  • automation: the use of CAM, machines and software when manufacturing
  • SVG: 2D file format used with laser cutters

Common Mistakes To Avoid

  • Laser cutters burn or melt the materials they are cutting.

3 Quick Questions (With Answers)

1. Explain the lesson in two key points.

Laser cutters use concentrated beams of light to cut or engrave materials, requiring precise vector files. Designs must be lowered through the Tinkercad workplane before exporting.

2. What does this key word mean in this lesson? 'CAM'

computer-aided manufacturing.

3. Correct this common mistake.

Mistake: Laser cutters burn or melt the materials they are cutting. Correction: Laser cutters actually vaporise the material with high precision.

More Lessons In This Unit

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