Hidden Lines: Hidden lines are thin dashed lines used to show features that cannot be seen in the current view. These lines are drawn with a dark pencil or ink and are the most common type of line in engineering drawing. Visible Lines: Visible lines are thick continuous lines that are used to show the outline and shape of an object. Here are the types of lines used in engineering drawing along with their details: It is a language of its own, with various types of lines and symbols used to convey specific information. In this blog, we will discuss how to read and understand engineering drawings.Įngineering drawing is a graphical representation of an object or structure, which is used to communicate design and manufacturing details. It is a graphical representation of a component, assembly, or system that contains all the necessary information needed to create, test, and manufacture a product.

Engineering drawing is a critical communication tool that plays a vital role in the design and manufacturing of products.

Flatness drawing symbol