Missing and Isometric Views Ppt v1 for Vinod
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Transcript of Missing and Isometric Views Ppt v1 for Vinod
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MISSING AND ISOMETRIC
VIEWS
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Discussion on Orthographic and
isometric projection.
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Success is lies not in the Result",
but In the " Effort, Being the
Best is NOT at all important ,
Doing the Best is all that
matters
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Taking wrong decision is better
than to remain confused.
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Principal of projection.If straight lines are drawn from various points
on the counter of an object to meet a plane,
the object is said to be projected on that plane.The figure formed by joining ,in correct
sequence ,the points at which these lines
meet the plane ,is called the projection of the
object .The lines from the object to the plane
are called projectors.
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METHODS OF PROJECTIONIn engg. drawing following four
methods
of projections are commonly used they are1)Orthographic projection.
2)Isometric projections.
3)Obique projection.
4)Prespective projection.
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In the above methods 2,3,4 represents the objects
by a pictorial view as eyes see it .In these methods of
projection a three dimensional object is represented
on a projection plane by one view only. While in the
orthographic projection an object is represented by
two or three views on the mutual perpendicular
projection planes. Each projection view representstwo dimensions of object at least two or three views
are required.
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Draw the first angle
projection and third angleprojection symbol?
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Why first angle and third angle
method is used and why second
and fourth angle method is not
used?
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Assumptions.1)Vertical plane is assumed fix.
2)Horizantal plane is rotated in 90 degree.
3)Horizontal plane is rotated in clockwisedirection only.
4)Observer is always at the right side of vertical
plane.
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Why third angle method is mostly used?
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First angle projection
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Third angle method.
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What is mean by
isometric projection?
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Isometric projection is a type of
pictorial projection in which the
three dimensions of a solid are not
only shown in one view, but their
actual sizes can be measureddirectly from it.
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Isometric graph
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Answer
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Solution-1
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2.
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Solution-2
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3.
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Solution-3
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4.
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Solution-4
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5.
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SOLUTION-5
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6.
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SOLUTION-6
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7.
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SOLUTION-7
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8.
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SOLUTION-8
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SOLUTION-9
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SOLUTION-10.
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11.
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SOLUTION-11
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12.Draw isometric view?.
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SOLUTION-12
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13.
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SOLUTION-13
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SOLUTION-13
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14.
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SOLUTION-14
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