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Blueprint Reading for the Machine Trades, Sixth Edition Unit 10: Typical Dimensions

Blueprint Reading for the Machine Trades, Sixth Edition Unit 10: Typical Dimensions

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Blueprint Reading for the Machine Trades, Sixth Edition Unit 10: Typical Dimensions

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  1. Blueprint Reading for the Machine Trades, Sixth Edition Unit 10: Typical Dimensions Russ Schultz and Larry Smith PowerPoint presentation created by LaVonne Vichlach

  2. Typical Dimensions • “TYP” means typical • Used to avoid repetitious dimensions on a drawing • E.g.—when it appears after a radial dimension-all undimensioned radii are considered to be the same • Use where repetition of same pattern is used

  3. Right Triangles • Right triangles can be dimensioned by • Two sides • One side and one angle

  4. Right Triangles • When angle is 45°-two sides are equal • Hypotenuse is equal to a length that is 1.414 X the length of the side

  5. Repetitive Features • Repetitive features or dimensions may be specified by using an “X” after the quantity followed by the dimension • “X” designates “times”

  6. Repetitive Features Examples

  7. MISC DETAILS 1. How much material remains between a hole and the nearest outside edge of item #1? .189

  8. MISC DETAILS 2. What is the specified material thickness ofitem 2? Brass .040

  9. MISC DETAILS 3. What is the total quantity of the three items shown? 5

  10. MISC DETAILS Calculate the dimensions for the letter A 1.30

  11. MISC DETAILS Calculate the dimensions for the letter B 2.10

  12. MISC DETAILS Calculate the dimensions for the letter C 45°

  13. MISC DETAILS Calculate the dimensions for the letter D 1.8382

  14. MISC DETAILS Calculate the dimensions for the letter E 2.6382

  15. MISC DETAILS Calculate the dimensions for the letter F 2.30

  16. MISC DETAILS Calculate the dimensions for the letter G 2.30

  17. MISC DETAILS Calculate the dimensions for the letter H .70

  18. MISC DETAILS Calculate the dimensions for the letter I .45

  19. MISC DETAILS Calculate the dimensions for the letter J 100°

  20. MISC DETAILS Calculate the dimensions for the letter K 130°

  21. MISC DETAILS Calculate the dimensions for the letter L .250

  22. MISC DETAILS Calculate the dimensions for the letter M 35°

  23. MISC DETAILS Calculate the dimensions for the letter N 20°

  24. MISC DETAILS Calculate the dimensions for the letter O 30°

  25. MISC DETAILS Calculate the dimensions for the letter P .30

  26. MISC DETAILS Calculate the dimensions for the letter Q .40

  27. Offset Pivot BRKT 1. What type of sectional view appears on the drawing? Broken out

  28. Offset Pivot BRKT • Is the material (a) nickel, or (b) molybdenum or (c) chromium alloy? (b) molybdenum

  29. Offset Pivot BRKT • Is the material (a) low-, (b) medium-, or (c) high-carbon steel? (b) medium

  30. Offset Pivot BRKT • How far does the boss extend above the its surrounding surface? .25

  31. Offset Pivot BRKT • How far does the pad extend above the its surrounding surface? .10

  32. Offset Pivot BRKT • What is the small diameter of the tapered hole? .3375

  33. Offset Pivot BRKT • What is the maximum width of the slotted hole? .41

  34. Offset Pivot BRKT • What is the minimum length of the slotted hole? 1.47

  35. Offset Pivot BRKT • What is the minimum width of the pad? .88

  36. Offset Pivot BRKT • What is the maximum length of the pad? 2.03

  37. Offset Pivot BRKT Calculate the dimension for the letter: A .70

  38. Offset Pivot BRKT Calculate the dimension for the letter: B 1.40

  39. Offset Pivot BRKT Calculate the dimension for the letter: C 2.60

  40. Offset Pivot BRKT Calculate the dimension for the letter: D .80

  41. Offset Pivot BRKT Calculate the dimension for the letter: E .707

  42. Offset Pivot BRKT Calculate the dimension for the letter: F .30

  43. Offset Pivot BRKT Calculate the dimension for the letter: G 3.00

  44. Offset Pivot BRKT Calculate the dimension for the letter: H .85

  45. Offset Pivot BRKT Calculate the dimension for the letter: I 1.30

  46. Offset Pivot BRKT Calculate the dimension for the letter: J 5.10

  47. ADJ MTG ARM 1. What is the pitch (decimal value) of the threads? .05

  48. ADJ MTG ARM 2.What thread series is specified? Coarse

  49. ADJ MTG ARM 3. What does the B in the thread specification designate? Internal Threads

  50. ADJ MTG ARM 4. How much surface roughness is permitted on the pad face? .000032