1. Unit 5 Three-View Drawings
Part 1-Section 2 Views
Unit 5 Three-View Drawings

2. More than one view required when…
Shape of object changes
Cut away or relieved geometry
Complex machining required
Complex fabrication

3. Most common views used View orientation Front Top Right side
Project image
Line of sight

5. Front View View observer sees
Turn object until only one side can be seen
Object lies on imaginary transparent plane
Parallel rays leaving object forms Front View

7. Top View Process similar to developing front view
Seen squarely from a point directly above
Place immediately above front view
In line with front view

10. Side View View is developed same way as front & top
Imagine view from side
Project parallel rays upon vertical plane

12. Front, Top, And Right Side Views
Swing top of imaginary projection box to vertical position
Swing right side forward
Top view is above front view
Side view is to right of front view

14. Height, Width, And Depth Height-vertical distance
Width-horizontal distance
Length & width used interchangeably
Shop usage
Depth-horizontal
Front to back
Shop may refer to as thickness

16. Working Drawings Actual drawing Working drawing
Top, front, & right side view
No imaginary transparent planes
Working drawing
Completely dimensioned
Notes
Enough information to construct

19. Print Reading Assignment-Unit 5
Angle Bracket (BP-5A)
Print Reading Assignment-Unit 5

20. Angle Bracket (BP-5A)
1. How many Angle Brackets are required?

21. Name the materials specified for the Angle Bracket.

22. State the order number of the Bracket.

23. What is the overall width (length) of the Bracket?

24. What is the overall height?

25. What is the overall depth?

26. What is dimension ? A

27. What is dimension ? B

28. What surface in the top view is represented by line in the right side view?

29. Name the three views that are used to describe the shape and size of the part.

30. What surface is the top view is represented by line in the right side view?

31. What line in the right side view represents surface in the front view?

32. What line in the right side view represents surface in the front view?J

33. What line in the top view represents surface in the right side view?

34. What line in the front view represents surface in the top view?

35. What line in the right side view represents surface in the top view?

36. What kind of lines are
and ? E L C D K

37. What kind of lines are
and ? A B

38. What encircled letter denotes an extension line?

39. What encircled letter in the front view denotes an object line?

40. Print Reading Assignment-Unit 5
Cross Slide (BP-5B)
Print Reading Assignment-Unit 5

41. What material is used for the Cross Slide?

42. How many pieces are required?

43. What is the overall width (length) of the Cross slide?

44. What is the order number?

45. What is the overall height of the Cross Slide?

46. What are the lines marked and called?B

47. What do the lines marked represent?

48. What two lines in the top view represent the slot shown in the front view?

49. What line in the right side view represents the slot shown in the front view?

50. What line in the front view represents surface in the right side view?Q

51. What line in the front view represents surface in the top view?D

52. What line in the top view represents surface in the front view?D

53. What line in the side view represents surface in the top view?

54. What is the diameter of the holes?

55. What is the center-to-center dimension of the holes?

56. How far is the center of the first hole from the front surface of the slide?

57. Are the holes drilled all the way through the slide?

58. What is the width of the slot shown in the front view?

59. What is the height of the slot?

60. Determine dimension S

61. What is the width of the projection at the top of the slide?

62. How high is the projection?

63. What kind of line is ? M

64. What kind of line is used at and ?P