Circular plane Projection

1. Draw the Projection of a circle of 70mm diameter on the HP . On a Point A of the circumference . The plane is inclined to the HP such that the top view is an ellipse of minor axis 40mm .The top view of the diameter ,through the point A is making an angle of 45 with the VP . Determine the inclination of plane with HP Anna University Question on Engineering Graphics And Engineering Drawing as per JNTU Circular plane Projection For First year Engineering students of all branch Step by Step Process Not available in any Text book Self learning is possible Learn from your mobile Look into www.facebook.com/Rajendiran1950 Step by Step Process Not available in any Text book Self learning is possible Learn from your mobile Look into www.facebook.com/Rajendiran1950

2. Draw XY line as shown X Y Prof.S.Rajendiran, Ashoka Institution

3. 1.Draw a circle as shown 7 Ø X Y Prof.S.Rajendiran, Ashoka Institution Since top view is an ellipse of minor axis 40mm. And hence the surface makes an angle with HP Therefore we need to Draw a circle in HP so that surface parallel to HP a nd lying on HP

4. 2.Draw projector as shown X Y Prof.S.Rajendiran, Ashoka Institution

5. X Y Prof.S.Rajendiran, Ashoka Institution 3.Draw front view as shown

6. X Y Prof.S.Rajendiran, Ashoka Institution 4.Divide the circle as shown

7. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 5.Mark the point as shown

8. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 6.Draw Projectors as shown

9. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 7.Mark the point as shown

10. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 8.Name the points as shown

11. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 40 9.Draw a line 40mm equal to minor axis on XY line as shown

12. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 10.Draw a vertical line as shown

13. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11.Transfer the front view as shown

14. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 12.Draw vertical projectors as shown

15. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 13.Draw horizontal projector as shown

16. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 14.Name the inter section points as shown

17. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 15.Join the points as shown to get ellipse

18. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 45 16.Draw a line 45 as shown

19. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 17.Transfer top view as shown

20. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 18.Draw horizontal projectors as shown

21. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 19.Draw vertical projectors as shown

22. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 a 2 ’ 6 2 ’ 3 2 ’ 4 2 ’ 8 2 ’ 2 2 ’ 10 2 ’ 9 2 ’ 1 2 ’ 11 2 ’ 5 2 ’ 7 2 ’ 20.Mark and Name Intersection points as shown

23. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 a 2 ’ 6 2 ’ 3 2 ’ 4 2 ’ 8 2 ’ 2 2 ’ 10 2 ’ 9 2 ’ 1 2 ’ 11 2 ’ 5 2 ’ 7 2 ’ 22.Join the points with smooth curve as shown

24. X Y Prof.S.Rajendiran, Ashoka Institution a 1 2 3 4 5 6 7 8 9 10 11 11’ 1’ 10’ 2 ’ 9 ’ 3 ’ 8 ’ 4 ’ 5 ’ 7 ’ 6 ’ a ’ 11 1 ’ 1 1 ’ 10 1 ’ 2 1 ’ 9 1 ’ 3 1 ’ 8 1 ’ 4 1 ’ 5 1 ’ 7 1 ’ 6 1 ’ a 1 ’ 11 2 1 2 10 2 2 2 9 2 3 2 8 2 4 2 5 2 7 2 6 2 a 2 11 1 1 1 10 1 2 1 9 1 3 1 8 1 4 1 5 1 7 1 6 1 a 1 a 2 ’ 6 2 ’ 3 2 ’ 4 2 ’ 8 2 ’ 2 2 ’ 10 2 ’ 9 2 ’ 1 2 ’ 11 2 ’ 5 2 ’ 7 2 ’ 45 40 70 TOP VIEW FRONT VIEW ALL DIMENSIONS ARE IN mm SCALE 1:1 VP HP