SECTIONS A section view clarifies the shape and location of the internal features. In a section view the object is sliced with an imaginary cutting plane. The portion closest to the viewer is removed so that the internal features of the object are visible.

Full Section In a full section, the cutting plane goes all the way across the object in a straight line. The section is typically drawn in an adjacent view and replaces the orthographic view. Here, the front view is now drawn as a full section.

Full Section The internal features normally shown with hidden lines are now represented with visible lines. The portion of the object where the cutting plane slices through material is crosshatched with light section lines.

Half Section Half sections are useful for showing both the internal features and external features of an object. In the sectional view, half of the object appears as a section and the other half appears as a normal view. Typically, hidden lines are not shown on the half section.

Offset Section In order to pass the cutting plane through the holes and slots the cutting plane line must sometimes bend at 90° angles to form an offset section. The bend in the cutting plane line does not create a visible line in the section view.

Broken-Out Section To illustrate interior features, a portion of the object is imaginatively broken away and the interior features are drawn in section. A jagged line is used to indicate the break and separate the section from the normal exterior view. Hidden lines are included in the normal view.

Revolved Section A revolved section shows a cutting plane perpendicular through the feature. The material cut with the cutting plane is then rotated 90° and the measurements are projected to the adjacent view. This revolved section is drawn directly on the adjacent view.

Removed Section If there is not room or if the drawing becomes too cluttered, the section can be drawn adjacent to the view as a removed section. Similar to the revolved section, the main difference is the location of the sectional drawing.