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The front elevation is in the centre in both projections.
In 1st angle projection the end elevation is on the opposite side of the front elevation and the plan view is below the front elevation.
In 3rd angle projection the plan view is above the front elevation and the end elevations are on the same side as viewed
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Can you show me the difference between first and third angle projection?
In a first angle projection, the object stands in between the observer and the plane of projection. In a third angle project, the object and the plane of projection is interchanged.
What advantage does first angle orthographic projection have over third angle orthographic projection?
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Where has third angle projection been used?
thrid angle projection is officially used in Australia, for a fact, not lying!!
What is different between 1st angle and 3rd angle?
Basically its just where you position the views of the main object, in first angle projection, if you view the object from the left, the view is drawn to the right of the object, in third angle projection, its drawn on the viewing side.
Advantages of a third angle drawing?
Third angle projection is in common use in the USA, Canada, and the UK. The rest of the world more commonly uses first angle. There is no inherent superiority of one projection over the other. When you are making drawings that may be used internationally, it's a very good idea to indicate by a small symbolic diagram which projection is in use. This diagram is usually a side and end view of a truncated cone.
