How Do You Change Dimensions in AutoCAD?

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AutoCAD is a powerful software used for creating and editing 2D and 3D designs. One of the essential tasks in AutoCAD is changing dimensions.

Whether you need to resize an object, adjust the length of a line, or modify the dimensions of a shape, AutoCAD provides several methods to accomplish this. In this tutorial, we will explore different techniques for changing dimensions in AutoCAD.

Using the ‘Scale’ Command

The ‘Scale’ command in AutoCAD allows you to resize objects uniformly by a specified scale factor. To use this command, follow these steps:

  1. Select the object(s) you want to scale. You can use various selection methods like clicking on individual objects or using a window selection.
  2. Type ‘SCALE‘ in the command line and press Enter.
  3. Specify the base point for scaling. This point acts as the reference for scaling the selected objects.
  4. Enter the scale factor or pick two reference points to determine the scale factor visually.

Note: The scale factor determines whether you want to make your object larger or smaller. For example, entering a value greater than 1 will increase the size of your object, while entering a value less than 1 will decrease its size.

Modifying Dimensions with Grips

Grips are small squares or rectangles that appear when you select an object in AutoCAD. They allow you to directly manipulate the geometry of an object without using specific commands. To change dimensions using grips:

  • Select the object whose dimensions you want to modify.
  • Click on one of the grips that appear on its boundary or vertices.
  • Drag the grip to adjust the dimensions of the object. AutoCAD provides visual feedback, such as temporary lines and measurements, to assist you in making precise changes.
  • Release the mouse button when you are satisfied with the new dimensions.

Note: Grips are a convenient way to modify dimensions quickly, but they may not be suitable for complex transformations or when you need precise control over the new dimensions.

Using Stretch and Lengthen Commands

The ‘Stretch’ and ‘Lengthen’ commands in AutoCAD are excellent options for modifying specific portions of an object or line. Here’s how to use them:

  1. Type ‘STRETCH‘ or ‘LENGTHEN‘ in the command line and press Enter.
  2. Select the object or line that you want to modify.
  3. Specify the stretch points or enter precise distances to resize your object accordingly.

Note: The ‘Stretch’ command allows you to stretch objects by picking points, while the ‘Lengthen’ command lets you lengthen lines by specifying distances. Both commands provide flexibility when it comes to modifying dimensions selectively.

Changing Dimensions using Properties Palette

The Properties palette in AutoCAD displays detailed information about selected objects, including their dimensions. To change dimensions using this method:

  1. Select the object whose dimensions you want to modify.
  2. Type ‘PROPERTIES‘ in the command line and press Enter, or click on the ‘Properties’ button in the Home tab of the ribbon.
  3. In the Properties palette, locate the dimension properties section and modify them as desired. You can directly edit numerical values or use the available drop-down menus.

Note: The Properties palette provides a convenient way to change dimensions precisely by directly editing their values. It is particularly useful when you need to modify multiple objects simultaneously or when you require accurate numerical input.

As you can see, AutoCAD offers various methods for changing dimensions. Whether you prefer using commands like ‘Scale,’ manipulating grips, employing the ‘Stretch’ and ‘Lengthen’ commands, or utilizing the Properties palette, there is a technique suitable for every scenario. By mastering these dimension-changing techniques, you can efficiently edit your designs and ensure they meet your exact specifications.