782 AutoCAD and Its Applications—Basics Copyright Goodheart-Willcox Co., Inc. Figure 26-2A shows an example of a bolt symbol created as a dynamic block and selected for grip editing. The bolt shaft objects include a linear parameter with a stretch action, as indicated by the parameter grips. The length of the bolt increases when you stretch the right-hand linear parameter grip to the right. See Figure 26-2B. NOTE O T N OT OT TE As you learn to create and use dynamic blocks, you will notice that many actions func- tion like editing commands with which you are already familiar, allowing operations such as stretch, move, scale, array, and rotate. PROFESSIONAL TIP PROFESSIONAL TIP AutoCAD includes several fi les of dynamic block symbols in the fi Program Files/ Autodesk/AutoCAD 2018/Sample/en-us/Dynamic Blocks folder. The Tool Palettes palette also includes sample dynamic blocks. Explore the sample symbols as you learn to create and use dynamic blocks. parameter grips: Special grips that allow you to change the parameters of a dynamic block. Figure 26-1. A—A dynamic block of a single-swing door symbol. B—The dynamic block allows you to create many different door symbols without creating new blocks or affecting other instances of the same block reference. Single dynamic block A B Figure 26-2. A linear parameter with a stretch action assigned to the shaft objects in the block of a bolt. A—Selecting the block displays the linear parameter grips. B—Selecting and moving a linear parameter grip stretches the bolt shaft. Selected linear parameter grip Grip stretched to here Linear parameter grips A B Block insertion point grip Dynamic distance of the bolt shaft being stretched