Oblique Pictorials

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Forging new generations of engineers
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Oblique Pictorials
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Oblique Pictorials
An Oblique pictorial starts with a straight-on
view of one of the objects faces, which is often
the front face. Angled, parallel lines are drawn
to one side to represent the objects depth.
Common oblique angles include 30, 45, and 60.
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Types of Oblique Drawings
There are two types of oblique pictorials
cavalier and cabinet. The difference between the
two is based on how the depth of the object is
represented.
Oblique Cavalier
Oblique Cabinet
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Types of Oblique Drawings
Oblique Cavalier
Oblique Cabinet
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General Oblique
A general oblique is a type of oblique pictorial
that represents an objects width and height, but
the depth can be any size and drawn at any
angle. The idea is to worry about getting the
thought down as a sketch not worrying about the
depth or angle.
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The Box Method
The box method is a sketching technique that is
used to maintain proportionality. It starts with
the sketcher envisioning an object contained
within an imaginary box.
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Oblique Sketches
Step 1 Layout the box within which the oblique
view will occur using points and construction
lines.
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Oblique Sketches
Step 2 Use points and construction lines to
identify edges that occur on the surface of the
box.
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Oblique Sketches
Step 3 Trace out the visible edges of the part
with thick, dark object lines.
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Oblique Sketches
Step 4 Use points and construction lines to
identify edges that occur on the surface of the
box.
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Oblique Sketches
Step 5 Trace out the visible edges of the part
with thick, dark object lines.
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Tonal Shading
Add tonal shading to two of the three views by
drawing parallel lines spaced closely
together. Increase the contrast by cross-hatching
the lines on the darkest face.