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Orthographic projections

Orthographic projections. Dr Ashish K Darpe Department of Mechanical Engineering IIT Delhi. ORTHOGRAPHIC PROJECTION. A) HP IS ROTATED 90 0 DOUNWARD B ) PP, 90 0 IN RIGHT SIDE DIRECTION. THIS WAY BOTH PLANES ARE BROUGHT IN THE SAME PLANE CONTAINING FP. PP. FP. Y. X. HP.

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Orthographic projections

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  1. Orthographic projections Dr Ashish K Darpe Department of Mechanical Engineering IIT Delhi

  2. ORTHOGRAPHIC PROJECTION A) HP IS ROTATED 900 DOUNWARD B) PP, 900 IN RIGHT SIDE DIRECTION. THIS WAY BOTH PLANES ARE BROUGHT IN THE SAME PLANE CONTAINING FP. PP FP Y X HP ACTUAL PATTERN OF PLANES & VIEWS OF ORTHOGRAPHIC PROJECTIONS DRAWN IN FIRST ANGLE METHOD OF PROJECTIONS Frontal Plane (Vertical Plane) PP PATTERN OF PLANES & VIEWS (First Angle Method) FP Y X Horizontal Plane (Top Plane) HP FV LSV X Y TV PP IS ROTATED IN RIGHT SIDE 900 AND BROUGHT IN THE PLANE OF FP. HP IS ROTATED DOWNWARD 900 AND BROUGHT IN THE PLANE OF FP.

  3. FOR T.V. FOR S.V. FOR F.V. THIRD ANGLE PROJECTION IN THIS METHOD, THE OBJECT IS ASSUMED TO BE SITUATED IN THIRD QUADRANT ( BELOW HP & BEHIND OF FP. ) PLANES BEING TRANSPERENT AND INBETWEEN OBSERVER & OBJECT. P.P. F.P. OBJECT TV X Y S.V. F.V. FV LSV ACTUAL PATTERN OF PLANES & VIEWS OF THIRD ANGLE PROJECTIONS

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