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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First angle projection and third angle projection are two methods of orthographic projection used in technical drawings. In first angle projection, the object is placed in the first quadrant, meaning the view is projected onto the plane behind the object, resulting in the top view appearing below the front view. In contrast, third angle projection places the object in the third quadrant, with the views projected onto the planes in front of the object, making the top view appear above the front view. These conventions are used to standardize how drawings are interpreted, with first angle commonly used in Europe and third angle in the United States.
First angle projection places the object between the observer and the plane of projection, meaning the top view is below the front view, and the right side view is on the left side of the front view. In contrast, third angle projection positions the object behind the projection plane, resulting in the top view being above the front view and the right side view appearing on the right side of the front view. To interpret these drawings, one should remember the placement of views relative to each other based on the projection method used. Familiarity with these conventions helps in accurately visualizing the three-dimensional object from its two-dimensional representations.
thrid angle projection is officially used in Australia, for a fact, not lying!!
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.