Glossary

Australian Standards

First angle projection

Third angle projection

 

What is third angle orthographic projection?

In Australia third angle projection is the preferred method for orthographic projection drawing as recommended by the Australian Standard 1100 Part 101.

Note the symbol for third angle projection. This is important information for the person interpreting the drawing because in third angle projection:

• the view from the front is in the middle
• the view from the left is on the left
• the view from the right is on the right
• the view from the top is on the top
• the view from the bottom is on the bottom
• the view from the rear is on the far right.

Memory tip for third angle projection

TAP-S - Third Angle Projection - Same

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