Tagged: Orthographic Projection

Normal and Nonnormal Lines 0

Normal and Nonnormal Lines

In a multi-view orthographic projection, a NORMAL line is one that is parallel to two of the planes of projection and perpendicular to the third. A line that is parallel to a plane of...

One and Two-View Drawings 0

One and Two-View Drawings

It is often the case that a two-view projection is all that is required. The view at the top of figure 5-19 shows a single-view projection of an object. It is obvious that a...

Using a Miter Line 0

Using a Miter Line

A miter line (OE in the figure) offers a convenient method of laying out a third view while you are in the process of drawing two views. Place the miter line (OE) to the...

Spacing of Views 0

Spacing of Views

Views should be spaced on the paper in such a manner as give the appearance of a balanced drawing. An easy way to locate horizontally aligned views on a standard size drawing sheet is...

Arrangement of Views 0

Arrangement of Views

The six principal views of an object drawn in a third-angle projection are arranged according to the American standard arrangement of views. This arrangement (practiced since the late 1800s) depicts the relative position of...

Line Conventions 1

Line Conventions

When you are preparing drawings, you will use different types of lines to convey information. Line characteristics, such as widths, breaks in the line, and zigzags, all have definite meanings. Construction Lines Usually the...

First and Third-Angle Projection 0

First and Third-Angle Projection

First-Angle Projection (Europe) Establishing an object’s true height, width, and depth requires front, top, and side views, which are called the PRINCIPAL PLANES OF PROJECTION. Figure 5-4 shows the three principal (or primary) planes...

Projections 0

Projections

To satisfy requirements for preparing single or multi-view drawings, you may use two main types of projection: PARALLEL and PERSPECTIVE (fig. 5-1). PARALLEL projection (fig. 5-2) is further classified into subtypes according to the...

Orthographic Projection 0

Orthographic Projection

Orthographic Projection When you are called upon to draw a three-dimensional object or figure, it is customary to represent the parts and forms on the flat plane of the drafting paper in such a...