hexagonal pyramid.pptx

engineering graphics

1. A hexagonal pyramid of base side 30mm and axis length 60mm is resting on HP on one of its base corners with its axis inclined to 35 to HP and parallel to VP. THE base sides containing the corners are equally inclined to HP. Draw its projections

2. X Y Draw XY line as shown

3. X Y Draw hexagon as shown Keep this corner as shown because it is going to inclined resting on corner

4. X Y c d e f o Mark the points as shown b a

5. X Y c d e f o Draw projectors as shown b a

6. X Y c d e f o Draw axis line as shown b a

7. X Y c d e f o Mark 60mm height as shown b a 60

8. X Y c d e f o Join the points as shown b a

9. X Y c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ Mark the points as shown b a

10. X Y c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 90 -35 =55 55 Draw the base 55 as shown since b a Axis is 35 to HP base will have 55 to HP don’t draw axis first

11. X Y c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ Draw the front b a view as shown

12. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ Draw Projectors as shown

13. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ Draw Projectors as shown

14. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ a1 b1 c1 d1 e1 f1 Mark the points as shown and Join them

15. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ a1 b1 c1 d1 e1 f1 o1 Draw the Projector as shown

16. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ a1 b1 c1 d1 e1 f1 o1 Join the points as shown

17. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ o1 a1 b1 c1 d1 e1 f1 Complete the Projection as shown

18. X Y a b c d e f o c ’ f ’ a ’(e ’ ) b’(d’) o ’ 55 o ’ o1 a1 b1 c1 d1 e1 f1 FRONT VIEW TOP VIEW ALL DIMENSIONS ARE IN MM SCALE 1:1 35