Auxiliary Views Auxiliary Views Auxiliary view Orthographic projection
- Slides: 17
Auxiliary Views
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
Foreshortened Surfaces • Foreshortened surfaces on multiview drawings are unclear and inaccurate representation of size or shape • View should not be dimensioned Foreshortened Face
sta Di ry Au xil ia • Auxiliary view is perpendicular to an angled surface • Shows true size and shape of the surface features e. g. , hole in surface as shown nc e Foreshortened Surfaces Tru e. H eig ht
Types of Auxiliary Views • Three types of ordinary auxiliary views 1. Depth auxiliary 2. Height auxiliary 3. Width auxiliary
Types of Auxiliary Views • Depth auxiliary view derived from front or back view to show true depth • Width auxiliary view derived from side view to show true width • Height auxiliary view derived from top or bottom view to show true height
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
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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
Edge View of Reference Plane R ef er en ce Li ne
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
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Creating Auxiliary Views • Step #4 – Draw object lines to connect corners that share a visible edge
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• 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
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
Partial Views short break lines
- Auxiliary view
- Orthographic view definition
- Orthographic drawing
- Isometric projection examples and solutions
- Isometric drawing
- Name
- Missing view
- Orthographic
- Multiview orthographic projection
- Orthographic views
- Hidden line drawing
- The six standard views
- Inclined surfaces
- Multiview drawing
- The top view of a 75mm long line cd measures 50mm
- It means equal measure in technical drawing
- Theory of orthographic projection
- Hidden line orthographic projection