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
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.
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.
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.
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first angle, third angle
right side view draw in left side and left side view draw in right side is called third angle projection
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.
third angle
any country using in second r fourth angle projection r else what r the advantages between first angle and third angle projetion
First angle is interpretted by the drawing being positioned to the right of the section and third angle is interpretted by the elevation being positioned to the left of the section.
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.