Introduction to engineering drawing modified
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Introduction to engineering drawing modified

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engineering drawing risk free understand

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Introduction to engineering drawing modified Introduction to engineering drawing modified Presentation Transcript

  • THINK ONCE… IS YOUR DISPOSABLE (PLASTIC) GLASS CLEANED AFTER ITS MANUFACTURE..??
    • … ..IT CONTAINS ARSENIC DUST..…REALLY A CANCER REAGENT…
    • … IF ANY HOT…LIQUID POUR IN IT…IT(Arsenic)
    • GET DISSOLVED.
  • Introduction to Engineering Drawing Why Drawings are needed? What is an Engineering Drawing?
      • Is an Universal Language
      • Standardized conventions for layout, nomenclature, interpretation, appearance
      • Deals with Precise
      • In technical nature
  • Introduction to Engineering Drawing Specification Initial Design Evaluate Design Design Satisfy Specification ? Modify Design Data for Production
  • Drawing Types
    • Types of Engineering Drawings
    • General Classification
      • Free hand sketch
      • Orthographic Projection
        • 1 st angle Projection
        • 2 nd angle projection
        • 3 rd angle Projection
        • 4 th angle Projection
    • 3. Pictorial views
      • Isometric views
      • Oblique views
    • 4. Perspective views
  • Drawing Types
      • Free hand sketch
  • Drawing Types
      • Orthographic Projection
  • Orthographic Projection First Angle
  • Orthographic Projection Third Angle
  • Isometric Projection
  • Oblique Views
  • Perspective Views But the realistic view (Naked Eye) is containing not parallel lines but lines appear to be converge & meet at a point.
  • Perspective Views
  • Perspective Views Two Point Perspective Vanishing point
  • Manual Drafting
  • Important points
    • Standards Use
      • ISO 2768, BS 8888, ANCI –Y14
      • Sri Lanka Standard 409: 1977
    • Paper Sizes
  • Line Types
  • Sectional Views
  • Important Points
      • Name of the Item
      • Drawing Number
      • Drawn, approved and verified by.
      • Original scale
      • Date of the drawing
      • Signatures
      • Copyrights clause
      • Projection symbol
      • Unit of measurement
      • Drawing practice standard
  • Dimensioning Linear Dimensioning Angular Dimensioning CHAIN-PARALLEL DIMENSIONING                                                                                                                                                                                  Dimensioning Diameters                                                                                                                                                        Dimensioning Holes                                                                                                                                                          
  • Threads Threads
  • YOUR CHEWING GUM CONTAINS …..
    • Appropriately, the stomach and intestines may become exhausted. So, concerns about stomach burns, ulcers and risks of different cancers arise.
    ANIMAL FAT (Intestines)……..