Section Views  In this tent you will learn a basic understanding on how full section views and offset section views work.

Full section views  A full section view is made by passing an imaginary cutting plane completely through an object that you want to section.  When a part is section viewed all the hidden features intersected by the cutting plane are represented by visible lines in the section view.

 Surfaces that are touched by the cutting plane will have section lines drawn at 45- degree angle to the horizontal. This is done to show where the part was cut by the cutting plane.  Hidden lines are always omitted in section views unless they are needed to provide a better understanding of the object.

Section lines  There are different types of section line symbols that can be used to represent various types of materials. However, there are so many different types of materials that the general symbol that is used in technical drawings is the cast iron symbol. The spacing in between section lines is uniform on a section view.

Here are a few samples of section line symbols

Offset section views  An offset section view has a cutting plane that is bent at one or more 90-degree angles in order to pass through as many important features as possible.  Usually offset section views are used for complex parts that have a number of important features that cannot be sectioned using a straight cutting plane.

 When creating an offset section view always make sure not to show the change of plane that occurs when bending the cutting plane at 90- degrees on the section view. In other words do not represent the change of plane with lines in the section view.  When using multiple offset section views on a single part always make sure to place labels on your different cutting planes for identification.

A full section view