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Draw the oblique view

20. 40. 20. f 15. Draw the oblique view. H1. H. f20. R20. L1. e’ 1. d’ 1. b’a’. ’. a’. b’. c’. c’. f’. f’. e’. e’. d’. d’. f’ 1. c 1 ’. 25. a’ 1. b’ 1. e 1. d 1. f 1. f. f 1. c 1. a. e. a 1. e 1. a 1. b 1. d. b 1. d 1. b. c. c 1. As 3 rd step

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Draw the oblique view

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  1. 20 40 20 f15 Draw the oblique view H1 H f20 R20 L1

  2. e’1 d’1 b’a’ ’ a’ b’ c’ c’ f’ f’ e’ e’ d’ d’ f’1 c1’ 25 a’1 b’1 e1 d1 f1 f f1 c1 a e a1 e1 a1 b1 d b1 d1 b c c1 As 3rd step redraw 2nd Tv keeping side DE on xy line. Because it is in VP as said in problem. Problem: A hexagonal lamina has its one side in HP and Its apposite parallel side is 25mm above Hp and In Vp. Draw it’s projections. Take side of hexagon 30 mm long. Draw in 1st angle Read problem and answer following questions 1. Surface inclined to which plane? ------- 2. Assumption for initial position? ------ 3. So which view will show True shape? --- 4. Which diagonal is horizontal? ---------- Hence begin with TV,draw rhombus below X-Y line, taking longer diagonal // to X-Y Y X

  3. Problem:A square pyramid, 40 mm base sides and axis 60 mm long, has a triangular face on the ground and the vertical plane containing the axis makes an angle of 450 with the VP. Draw its projections. Take apex nearer to VP o’ b’ d’ a’ c’ a a d d o o c c b b 1st. Angle o’ b’ a’ Y a’ X b’ c’ d’ o’ c’ d’ a a d d o o b c c b (APEX NEARER TO V.P). (APEX AWAY FROM V.P.)

  4. Problem : A cylinder 40 mm diameter and 50 mm axis is resting on one point of a base circle on Vp while it’s axis makes 450 with Vp and Fv of the axis 350 with Hp. Draw projections.. d’ 4’ d’ 4’ d’ 4’ 3’ c’ 3’ c’ 3’ c’ 1’ a’ a’ 1’ a’ 1’ b’ 2’ 2’ b’ b’ 2’ c1 d1 a b d c b1 a1 3 1 2 4 3 4 2 1 X 350 Y a b d c 450 1 2 4 3

  5. A frustum of a hexagonal pyramid has side of lower base 50 mm and side of upper base 20 mm with height of 80 mm. It also has a circular hole drilled centrally along the height. The pyramid is resting on one of the corners of lower base on the ground with axis parallel to frontal plane and inclined at 45o to the ground. Draw front, top and side viewMARK THE POINTS YOURSELF New top view T 50 20 b b a a b” 45o a” 45o b’ Direction of view a’ b’ a’ 80 b’ F New Right side view New front view

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