What is the difference between first angle projection and
third angle projection?

Answer Posted / naveen

First angle projection
1. The object is kept in the first quadrant.
2. The object lies between the observer and the plane of projection.
3. In this method, when the views are drawn in their relative positions, planed comes below the elevation.


Third angle projection
1. The object is assumed to be kept in the third quadrant.
2. The plane of projection lies between the observer and the object.
3. In this method, when the vies are drawn in their relative positions, the plan , comes above the elevation.

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