Projection of planes 021

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Projection of planes 021

  1. 1. Q7:A semicircular plate of 80mm diameter has its straight edge in the VP and inclined at 45to HP.The surface of the plate makes an angle of 30 with the VP. Draw its projections. Read problem and answer following questions 1. Surface inclined to which plane?______ 2. Assumption for initial position? plane // to ____ 3. So which view will show True shape? _______ 4. Which side will be vertical? ___________ Hence begin with __,draw hexagon ______ X-Y line, taking one side vertical. Plane in the V.P. with Plane inclined at 30º to the V.P. St. edge in V.P. and straight edge ┴ to H.P and straight edge in the H.P. inclined at 45º to the H.P. 1’ 11’ 2’ 21’ 3’ 31’ Ø 80 4’ 41’ 5’ 51’ 6’ 71’ 61’ 7’ 45º 71 11 X 30º Y 1 2 3 4 21 7 6 5 61 31 51 41

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