Transcription of PROJECTIONS OF PLANES
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PROJECTIONS OF PLANES
,rectangle,circle,pentagon,hexagon, OF PLANESPROJECTIONS OF PLANESIn this topic various plane figures are the will be given in the problem? of the plane s position with HP and which manner it s position with HP & VP will be described? of it s SURFACE with one of the reference PLANES will be of one of it s EDGES with otherreference plane will be given(Hence this will be a case of an object inclined to both reference PLANES .)To draw their PROJECTIONS means , & is usually asked in the problem?Study the illustration showing surface & side inclination given on next d c b HPabcda1 d1 c1 b1 HPa1b1c1d1 CASE OF A RECTANGLE OBSERVE AND NOTE ALL PARALLELTO HPPICTORIAL PRESENTATIONSURFACE INCLINEDTO HPPICTORIAL PRESENTATIONONE SMALL SIDE INCLINED TO VPPICTORIAL PRESENTATIONORTHOGRAPHICTV-True ShapeFV-Line // to xy ORTHOGRAPHICFV-Inclined to XYTV-Reduc
final TV was completed.Study illustration carefully. Note the difference in construction of 3rd step in both solutions. Problem 10: End A of diameter AB of a circle is in HP and end B is in VP.Diameter AB, 50 mm long is 30 0& 60 inclined to HP & …
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