CAD

• Includes the use of computers to create either 2D working drawings or 3D full colour, virtual models
• Advantages


  The design and development process is faster due to the advantages of editing and files rather than drawing by hand
• Advantages


  The design and development process is faster due to the advantages of editing files rather than drawing by hand.

  Networking facilities mean people can collaborate from different countries.

  Files can be sent to 3D printers to make models and prototypes
• Disadvantages


  It is expensive to set up due to hardware and software costs and training.

  Software requires ongoing technical support

  Not always convenient for quick recording of ideas
• Simulations


  A simulation can run through a CAM process which can then be assessed on its success. eg. the cutting path of a CNC laser

  Highlights potential problems and shows if the production will be as expected. Indicates time and facilitates nesting which reduces wanted material.