1. Conventional methods to produce a technical drawing
   
2. Modern computer aided design (CAD) - enables designers to make quick and accurate drawings with the use of a computer, to construct a 3-D representation of the component that can be viewed from many angles to check functionality and appearance.

A modern designer will also utilise finite element analysis (FEA) and mathematical modelling to fulfil design requirements and product specifications.

FEA - software analysis predicts how structures and materials respond to environmental factors such as forces, heat and vibration.

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Good practice online modules

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• Dimensional
• Overview of basic design & interpretation of an engineering drawing
• An introduction to datum
• An introduction to geometric tolerancing
• An introduction to the designer's role in the design & interpretation of an engineering drawing
• An introduction to the manufacturer's role in the design & interpretation of an engineering drawing
• An introduction to the inspector's role in the design & interpretation of an engineering drawing