AutoCAD

How to Use Trim in AutoCAD 2019?

Understanding the TRIM Command in AutoCAD 2019

The TRIM command in AutoCAD allows users to cut or remove unwanted portions of objects based on specified cutting edges. This command is essential for refining designs and enhancing clarity in drawings.

How to Execute the TRIM Command in AutoCAD 2019

Follow these detailed steps to effectively use the TRIM tool:

Step 1: Access the TRIM Tool

Begin by navigating to the Home tab on the ribbon. Locate the Modify panel, and within it, click on the Trim icon. This instantly activates the TRIM command and prepares the workspace for your selections.

Step 2: Choose Cutting Edges

Select the objects that will serve as your cutting edges. These can be lines, arcs, or other entities that will determine where the cuts occur. After you have selected all necessary cutting edges, press Enter to continue.

Step 3: Select Objects to Trim

Next, click on the objects that you wish to trim. This action will instruct AutoCAD to remove any sections of the selected objects that intersect with the cutting edges previously defined. After selecting all relevant objects, hit Enter to finalize the trimming operation.

Troubleshooting TRIM Issues

If you encounter difficulties while using the TRIM command, check the status of the PICKADD variable. It should be set to 2 for the command to function correctly. You can type PICKADD into the command line to verify its status and adjust if necessary. Additionally, pre-selecting the entities before initiating the TRIM command can enhance the process. Just type TRIM in the command line, press Enter, and then select your objects.

TRIM Settings Customization

To alter TRIM settings in AutoCAD 2025, access the Preferences through the AutoCAD menu. Within Preferences, navigate to the Application tab, where you will find options to reset or modify TRIM functionalities according to your requirements.

Exploring the Differences: TRIM vs. ERASER

It’s vital to understand how the TRIM command differs from the ERASER tool. While TRIM modifies objects by cutting away parts that intersect with cutting edges, the ERASER tool removes selected objects entirely without consideration for any intersecting lines or boundaries. Thus, TRIM is precise in nature, whereas ERASER is more absolute.

Frequently Asked Questions

1. What types of objects can I use as cutting edges with the TRIM command?

Typically, lines, arcs, circles, and polylines can all serve as cutting edges in the TRIM command. Any object that visually intersects with the entities you wish to modify will function as a valid cutting boundary.

2. Can I use the TRIM command in 3D spaces, or is it limited to 2D?

The TRIM command is functional in both 2D and 3D environments, but it primarily operates on the XY plane within the current User Coordinate System (UCS). Be sure your objects are projected in a 3D space where they intersect the cutting edges.

3. Is there a shortcut for the TRIM command in AutoCAD?

Yes, the shortcut for the TRIM command is simply “TR.” You can type this directly into the command line to activate the TRIM function quickly, streamlining your workflow significantly.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.