Unit 1 orthographic projection engineering graphics
- 1. Dr.R. GANESAMOORTHY.B.E.,M.E.,Ph.d.Dr.R. GANESAMOORTHY.B.E.,M.E.,Ph.d. Professor –Mechanical EngineeringProfessor –Mechanical Engineering Saveetha Engineering CollegeSaveetha Engineering College TandalamTandalam Chennai.Chennai. 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 1
- 2. Orthographic projections In orthographic projections, the principle views – Front view, Top view, & Side views of an object are drawn by the direct observation. These views are drawn from the pictorial view of an object. The pictorial view is a three dimensional representation. By observing pictorial view, it is very easy to visualize the shape when the object is viewed from front, top & sides. 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 2
- 3. Orthographic Projection Multi-view drawings provide the most accurate description of 3D objects and structures for engineering, manufacturing, and construction requirements In engineering, there are two systems of projection: First Angle Projection – Europe, Asia and former European colonies in Africa and parts of Australia Third Angle Projection – Used in the USA and Canada, in Africa where American development is taking place and parts of Australia 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 3
- 4. Conventional Projections 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 4
- 5. ` 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 5 ORTHOGRAPHIC PROJECTIONS
- 6. Orthographic projections 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 6
- 7. Views What Seen Front view Length and Height–(width not consider) Top view Length and width–(Height not consider) Side view Height and width–(Length not consider) Arrangement of views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 7
- 8. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 8
- 9. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 9
- 10. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 10
- 11. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 11
- 12. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 12
- 13. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 13
- 14. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 14
- 15. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 15
- 16. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 16
- 17. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 17
- 18. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 18
- 19. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 19
- 20. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 20
- 21. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 21
- 22. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 22
- 23. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 23
- 24. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 24
- 25. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 25
- 26. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 26
- 27. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 27
- 28. Representation of orthographic views 09/20/18 Dr.RGM/ Prof-Mechanical/unit 1 28