Ellipsebygenmethod(thedirectdata[1].com)
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The document contains instructions to draw the projections of a regular hexagon where one corner is located in the horizontal plane (HP) and the surface of the hexagon is inclined at 45 degrees to the HP. The top view shows the diagonal through the corner in the HP makes an angle of 60 degrees to the vertical plane (VP).
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Ellipsebygenmethod(thedirectdata[1].com)
- 1. F A B C V E 1 1’ Given CF=65mm Given, eccentricity=3/4. Therefore divide CF in 7 equal parts and mark V at 3rd division from F Draw an ellipse by general method, given distance of focus from directrix 65mm and eccentricity ¾.
- 2. a b c d ef a’ b’ f’ c’ e’ d’ a’ b’ f’ c’ e’ d’ 45° a1 f1 e1 d1 b1 c1 60° a1 b1 c1 d1 e1 f1 a1’ b1’ c1’ d1’ e1’ f1’ PROBLEM A regular hexagon of 40mm side has a corner in the HP. Its surface inclined at45° to the HP and the top view of the diagonal through the corner which is in the HP makes an angle of 60° with the VP. Draw its projections. Plane parallel to HP Plane inclined to HP at 45°and ┴ to VP Top view of the diagonal making 60° with the VP. YX
- 4. PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The distance between fixed point and the fixed line is 65 mm. A B C D E 1 1’ F 2’ 2 3’ 3 4’ 4