Chapter 24 Standard Blocks 731 Copyright Goodheart-Willcox Co., Inc. Naming and Describing the Block Enter a descriptive name for the block in the Name: text box. For example, name a vacuum pump PUMP or a 3′-0″ × 6′-8″ door DOOR_3068. The block name cannot exceed 255 characters. It can include numbers, letters, spaces, the dollar sign ($), hyphen (-), and underscore ( _ ). Use the drop-down list to access an existing name to recreate a block or to use a block name as reference when naming a new block with a similar name. Figure 24-1. Common drafting symbols and their insertion points for placement on drawings. Colored grips indicate the insertion points. Architectural Blocks Electronic Blocks Mechanical Blocks Figure 24-2. Use the Block Definition dialog box to create a block. Pick to select objects on screen Block behavior options Quick Select button Enter a description of the block Enter a name for the block Pick to specify an insertion point Additional block settings