AutoCAD

How to Use Trim Command in AutoCAD 2010?

Understanding the TRIM Command in AutoCAD 2025

What is the TRIM Command?

The TRIM command is an essential tool in AutoCAD that allows users to cut off portions of objects that extend beyond specific boundaries, known as cutting edges. This can enhance the precision and aesthetics of your drawing as you work to create clean lines and shapes.

Step-by-Step Guide to Using the TRIM Command

Step 1: Access the TRIM Command

To begin using the TRIM command, select the home tab on the AutoCAD ribbon. Locate the “Modify” panel, and then click on the “Trim” option. Alternatively, you can type “TR” into the command line and press Enter.

Step 2: Define the Cutting Edges

After initiating the TRIM command, you will be prompted to select cutting edges. These are the lines, curves, or shapes that will dictate where the other objects are trimmed. Click on the objects you want to serve as cutting edges. Once you’ve selected all necessary cutting edges, press Enter to confirm your selection.

Step 3: Select Objects to Trim

Next, select the parts of your drawing that you wish to trim. This includes lines, arcs, or other entities that intersect with your cutting edges. Once you’ve made your selections, press Enter again to execute the trim operation.

Tips for Effective Trimming

  • Use the Right View: Make sure you’re working in an appropriate zoom level and view to ensure accuracy.
  • Multiple Edges: If you have multiple cutting edges, you can select them in a single action, ensuring a smoother workflow.
  • Undo Functionality: If you make a mistake, use the “Undo” command (Ctrl + Z) to revert the last action.

Common Issues with the TRIM Command

Why is the TRIM Command Not Working?

If you encounter issues where the TRIM command doesn’t seem to function as expected, there are a few troubleshooting steps you can try:

  1. Check the PICKADD Variable: Confirm that the PICKADD variable is set to 2. This setting is essential for pre-selecting the objects you’ll be trimming.
  2. Pre-Select First: Try selecting the objects you want to trim before activating the TRIM command.
  3. Command Line Entry: Type “TR” in the command line once, then hit Enter before selecting any objects.

Frequently Asked Questions

1. Can I trim multiple objects at once?
Yes, you can select multiple objects to trim in a single action as long as those objects intersect with your defined cutting edges.

2. Is there a keyboard shortcut for trimming in AutoCAD?
Yes, you can quickly access the TRIM command by typing “TR” and then pressing Enter.

3. What happens if I accidentally trim the wrong part?
If you trim an area by mistake, you can easily use the “Undo” command (Ctrl + Z) to revert the last trimming action. Alternatively, you can use the “Recover” function if significant changes need to be reversed.

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.