AUXILIARY VIEWS

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AUXILIARY VIEWS
Graphics 8
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AUXILIARY VIEWS

• DEFINITION
• TYPES OF AUXILIARY VIEWS
• DRAWING AN AUXILIARY VIEWS

Ref Notes
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DEFINITION

• Many objects and parts have inclined surfaces and
  features that cannot be adequately shown and
  described by drawings using principle views
  alone.
• The basic method of multiviews described in
  Graphics 4, has been adequate to draw objects
  having horizontal and vertical surfaces and for
  objects have simple inclined surfaces.

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DEFINITION

• To provide a clear description of the inclined
  features, it is necessary to draw a view that
  will show their true shape and size.
• Auxiliary views are used to show the true
  shape/size of a features that are not parallel to
  any of the principle planes of projection.

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DEFINITION
AUXILIARY VIEW is a view that lies in a
projection plane other than the horizontal (top),
frontal (front), or profile (side) plane (or a
plane parallel to one of these three bottom,
back, opposite side).
Other than the six standard views of a part
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Six Standard Views of a Part
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DEFINITION
Anchor has an inclined surface that cannot be
seen in its true shape in a principle view
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DEFINITION
Detail of Anchor Showing Auxiliary View
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DEFINITION
An Auxiliary View
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DEFINITION
Comparison between Regular Views and Auxiliary
View
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TYPES OF AUXILIARY VIEWS

• Primary auxiliary viewsare projected from one of
  the principle views. A primary auxiliary view is
  perpendicular to one of the three principle
  planes and inclined to the other two.
• Secondary auxiliary views are projected from a
  primary auxiliary views and are inclined to all
  three principle planes of projection.
• Successive auxiliary views are projected from
  secondary auxiliary views.

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TYPES OF AUXILIARY VIEWS
Primary and Secondary Auxiliary Views
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TYPES OF AUXILIARY VIEWS

• PRIMARY AUXILIARY VIEW IS ONE THAT IS ADJACENT TO
  AND ALIGNED WITH ONE OF THE PRINCIPLE. PRIMARY
  AUXILIARY VIEWS ARE IDENTIFIED AS
• 1. FRONT-ADJACENT
• 2. TOP-ADJACENT
• 3. SIDE ADJACENT

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TYPES OF AUXILIARY VIEWS
(a) Front-Adjacent auxiliary view
(b) Top-Adjacent auxiliary view
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TYPES OF AUXILIARY VIEWS
Type of auxiliary view?
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TYPES OF AUXILIARY VIEWS
Primary Top-Adjacent Auxiliary View
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DRAWING AN AUXILIARY VIEW

• Draw two principle views of the object
• Draw projection lines perpendicular to the
  inclined surface
• Assume reference plane coinciding with back
  surface of object as shown at (a).
• Draw reference lines in the top and auxiliary
  views at right angles to the projection lines
  these are the edge views of the reference plane.
• Draw auxiliary view o surface A, it will be true
  size and shape

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DRAWING AN AUXILIARY VIEW
6. Complete the auxiliary view by adding other
visible edges and surfaces of the object.
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DRAWING AN AUXILIARY VIEWS
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DRAWING AN AUXILIARY VIEWS
Isometric View, Principle Views and Auxiliary View
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DRAWING AN AUXILIARY VIEWS
Auxiliary Section
An auxiliary section is simply an auxiliary view
in section
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AUXILIARY VIEWS