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Chapter 16. Creating and Using Blocks > Introduction to Blocks

Introduction to Blocks

A block is a set of AutoCAD objects grouped together as one object, known also as a block reference. When you define a set of objects as a block, it makes the drawing more manageable. Rather than numerous separate objects, many objects that form a particular part or fixture can be grouped together to create a block. For example, the lines that make up a door and the arc of the door swing can be combined to create a door block, just as the lines and arc drawn to make a pump or switch can be merged together to form a pump or switch block. Using this process, you can create a symbol library of discipline-specific blocks you can use within your drawing. Many other benefits are also gained by creating blocks, including higher productivity in the drawing, smaller drawing size, and simpler editing. Information in the form of block attributes can be assigned the block objects as well and then extracted from the drawing when finished to create a bill of materials or schedule.

In this chapter, you'll learn how to define, insert, and manage blocks and to master their use. You will also learn how to use the AutoCAD DesignCenter to create and extract block attributes.


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