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Chapter 14 Axonometric Projection

Given This! . Draw this! . Types of Axonometric Projection. Isometric

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Chapter 14 Axonometric Projection

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    1. Chapter 14 Axonometric Projection (Pictorial Drawing)

    2. Given This!

    3. Draw this!

    4. Types of Axonometric Projection Isometric has equal foreshortening along each of the three axis directions Dimetric has equal foreshortening along two axis directions and a different amount on the third axis Trimetric has different foreshortening along all three axis directions

    5. Types of Axonometric Projection

    6. Isometric Projection The projections of the edges of a cube in isometric projection make angles of 120 degrees with each other

    7. Isometric Projection Lines of an isometric drawing that are not parallel to the isometric axes are called nonisometric lines These lines are not equally foreshortened

    8. Isometric Projection Isometric scales can be used to draw correct isometric projections All distances are approximately 80% of true size

    9. Isometric Drawings Isometric drawings, unlike isometric projections, are drawn using the full length measurements of the actual drawing and lacks foreshortening The isometric drawing is about 25% larger than the isometric projection

    10. Iso Paper

    11. Making an Isometric Drawing

    12. Sketch an Isometric Drawing

    13. Iso Paper

    14. SOLUTION

    15. Sketch an Isometric Drawing

    16. Iso Paper

    17. SOLUTION

    18. Hidden Lines and Centerlines Hidden lines are omitted unless they are needed to make the drawing clear Center lines are shown if they are needed to indicate symmetry or if they are needed for dimensioning

    19. Angles in Isometric Angles project true size only when the plane containing the angle is parallel to the plane of projection An angle may project to appear larger or smaller than the true angle depending on its position

    20. Circles in Isometric If a circle lies in a plane that is not parallel to the plane of projection, the circle projects as an ellipse Ellipses can be constructed using offset measurements

    21. Ellipses in Isometric Approximate ellipses can be constructed from arcs

    22. Drawing Ellipses

    23. Drawing Isometric Cylinders

    24. Irregular Objects

    25. Irregular Objects

    26. Curves in Isometric

    27. Screw Threads in Isometric Parallel partial ellipses equally spaced at the symbolic thread pitch can be used to represent screw threads

    28. Arcs in Isometric

    29. Intersections

    30. Spheres in Isometric

    31. Isometric Sectioning Isometric sectioning is useful in drawing open or irregularly shaped objects

    32. Isometric Dimensioning Isometric dimensions are similar to dimensions on multiview drawings but should match the pictorial style

    33. Exploded Assemblies

    34. Piping Diagrams

    35. Sketch an Isometric Drawing

    36. Iso Paper

    37. Solution

    38. Sketch an Isometric Drawing

    39. Iso Paper

    40. Solution

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