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Orthographic Views

Chapter Description

In this sample chapter from Engineering Design Graphics with Autodesk Inventor 2020, author James D. Bethune presents orthographic views using third-angle projection in accordance with American National Standards Institute (ANSI) standards. International Organization for Standardization (ISO) first-angle projections are also presented.

Auxiliary Views

Auxiliary views are orthographic views used to present true-shape views of slanted surfaces. Figure 4-51 shows an object with a slanted surface that includes a hole drilled perpendicular to the slanted surface. Note how the right-side view shows the hole as an ellipse and that the surface A-B-C-D is foreshortened; that is, it is not shown at its true size. Surface A-B-C-D does appear at its true shape and size in the auxiliary view. The auxiliary view was projected at 90° from the slanted surface so as to generate a true-shape view.

  • auxiliary view

  • An orthographic view drawn perpendicular to a slanted or oblique surface.

Figure 4-52 shows an object that includes a slanted surface and hole.

Exercise 4-10 Drawing an Auxiliary View

  • 01.jpg Create a drawing using the ANSI (mm).ipt format. Click the Base View and Projected View tools on the Create panel under the Place Views tab, and create a front and a right-side view as shown in Figure 4-53.

    Click the Auxiliary View tool, then the front view.

  • 02.jpg The Auxiliary View dialog box will appear.

  • 03.jpg Enter the appropriate settings, then click the slanted edge line in the front view.

    In this example, a scale of 1:1 was used.

  • 04.jpg Move the cursor away from the front view and select a location for the auxiliary view.

  • 05.jpg Click the left mouse button and create the auxiliary view.

11. ASME Y14.3-2003 | Next Section Previous Section

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