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.
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thrid angle projection is officially used in Australia, for a fact, not lying!!
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.
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
first angle projection and third angle projection.
Neglecting term "opposite".. In third angle projection, what we see are what are we going to draw
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.
third angle
hfgvgbvkn
thrid angle projection is officially used in Australia, for a fact, not lying!!
right side view draw in left side and left side view draw in right side is called third angle projection
first angle, third angle
Both third angle and first angle projection display the standard three orthographic views of a part or assembly on a drawing.. The key difference between third angle and first angle is the layout of the part on the sheet.
any country using in second r fourth angle projection r else what r the advantages between first angle and third angle projetion
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.
because 2nd and 4th angle projection overlap each other