Hidden lines show edges of details that are not visible from the point of view shown in the drawing. Center lines define the center of arcs, circles, or symmetrical parts.
What Is the Purpose of Hidden Lines and Center Lines?
As an engineer, you will encounter many different types of lines while creating drawings. Each type of line has a specific purpose, and knowing when to use each type is crucial to communicating your designs effectively.
In this article, we will discuss the purpose of hidden lines and center lines. Hidden lines are used to indicate parts of an object that are not visible from the viewpoint of the drawing.
They are typically used to show the back side of an object or to show an object that is obstructed by another object. Hidden lines are shown as dashed lines. Center lines are used to indicate the center of an object or the center of a hole.
They are typically used to help align objects on a drawing. Center lines are shown as double dashed lines. Knowing when to use hidden lines and center lines is an important part of effective engineering drawing.
Using the wrong type of line can result in confusion and frustration for those trying to interpret your drawings. Take the time to learn the different types of lines and when to use them, and your drawings will be that much easier to understand.