1 / 17

Auxiliary Views

Auxiliary Views. Auxiliary Views. Auxiliary view Orthographic projection of an angled surface A ppears foreshortened in a typical multi-view drawing Auxiliary views are used to show true size and shape of angled surface features. Foreshortened Surfaces.

tarala
Download Presentation

Auxiliary Views

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Auxiliary Views

  2. Auxiliary Views • Auxiliary view • Orthographic projection of an angled surface • Appears foreshortened in a typical multi-view drawing • Auxiliary views are used to show true size and shape of angled surface features

  3. Foreshortened Surfaces • Foreshortened surfaces on multi-view drawings are unclear and inaccurate representation of size or shape • View should not be dimensioned Foreshortened Face

  4. Foreshortened Surfaces • Auxiliary viewis perpendicular to an angled surface • Shows true size and shape of the surface features e.g., hole in surface as shown True Height Auxiliary Distance

  5. Types of Auxiliary Views • Three types of ordinary auxiliary views • Depth auxiliary • Height auxiliary • Width auxiliary

  6. Types of Auxiliary Views • Depth auxiliary view derived from frontor back viewto show true depth • Width auxiliary view derived from sideviewto show true width • Height auxiliary view derived from topor bottom viewto show true height

  7. Creating Auxiliary Views • Step #1 • Multi-view drawing containing canted surface • Example will be more clear with auxiliary view of canted surface on front view

  8. 1 2 4 1 5,6 3 5 4,7 6 9 7 2,9 3,8 8 1,2 1 2 3,4 4 3 5 5 7 8,7 8,9 6 6 9

  9. Creating Auxiliary Views • Step #2 • Determine true dimension to show on auxiliary view • Identify reference edges on existing view • Draw appropriately spaced construction lines where auxiliary view will be drawn • Construction lines are reference lines parallel to angled edge

  10. Edge View ofReference Plane Reference Line

  11. Creating Auxiliary Views • Step #3 • Draw construction lines outward from each corner of view • Auxiliary view will be a 90° rotation of view • Lines must be perpendicular to angled edge • Identify relationship between object corners and construction line intersections

  12. 1 1 2 4 1 5,6 3 2 4 5 5 4,7 3 7 6 6 9 9 7 2,9 3,8 8 8 1,2 1 2 3,4 4 3 5 5 7 8,7 8,9 6 6 9

  13. Creating Auxiliary Views • Step #4 • Draw object lines to connect corners that share a visible edge

  14. 1 1 2 4 1 5,6 3 2 4 5 5 4,7 3 7 6 6 9 9 7 2,9 3,8 8 8 1,2 1 2 3,4 4 3 5 5 7 8,7 8,9 6 6 9

  15. Auxiliary view is projected from front view • Shows true size and true shape of the angled surface • If hole were located on surface, then it could be properly dimensioned

  16. Partial Views • Foreshortened object faces can be difficult to draw because of complex shapes or curves • Short break lines and partial views simplify difficult curves on foreshortened faces while maintaining complete shape description

  17. short break lines Partial Views

More Related