AutoCAD

How To Trim In AutoCAD 2017?

Understanding the TRIM Command in AutoCAD 2017

Trimming in AutoCAD is an essential skill for effectively managing and modifying your drawings. The TRIM command allows you to cut objects such as lines, arcs, and polylines using other objects as cutting edges. Knowing how to use this command efficiently can enhance your workflow and improve the precision of your designs.

Step-by-Step Guide to Trimming Objects in AutoCAD 2025

Step 1: Activate the TRIM Command

To initiate the process, navigate to the Home tab in the AutoCAD ribbon. Look for the Modify panel, where you will find the TRIM tool. Click on the TRIM icon to activate the command, or simply type ‘TRIM’ in the command line and hit Enter.

Step 2: Select Cutting Edges

After activating the TRIM command, you will be prompted to select the cutting edges. These are the objects that will serve as boundaries for your trimming operation. Click on the edges you wish to use and press Enter once you are done selecting. Ensure you carefully choose these edges as they will determine how your objects will be trimmed.

Step 3: Choose Objects to Trim

Next, it’s time to select the objects you wish to trim. Click on the sections of the objects that you want to remove. You can click on multiple segments in one go. Once you have finished selecting the areas to be trimmed, press Enter again to complete the operation. The objects will now be trimmed to the extent of the cutting edges you selected.

Step 4: Finalize the Operation

After completing the above steps, you will notice that the selected segments have been removed, effectively altering the shape of your objects as required. It’s advisable to zoom in and inspect the results to ensure the trimming has been executed accurately.

Troubleshooting: Resolving Common TRIM Issues

Why Isn’t TRIM Working?

If the TRIM command fails to function as intended, start by checking the PICKADD variable. This variable should be set to 2; if it isn’t, adjust this setting. You can set it by typing ‘PICKADD’ into the command line, entering your desired value, and then hitting Enter. Once corrected, try pre-selecting the objects and invoking the TRIM command again.

Trimming Arrays and Nested Objects

For trimming arrays or nested objects, you may need to explode the array first. This can be accomplished by selecting the array and typing ‘EXPLODE’ into the command line. Alternatively, you can utilize the ‘edit source’ option under the Array ribbon to modify the array before trimming. This ensures that the items can be treated as individual elements during the trimming process.

Frequently Asked Questions

Can I Use TRIM on a Polyline in AutoCAD?

Yes, the TRIM command can be applied to polylines, arcs, circles, and various linework objects. Ensure that the polyline is fully selectable as you define your cutting edges and choose the segments to be trimmed.

How Do I Undo a Trim Action?

If you accidentally trim the wrong object or section, you can easily restore it by using the ‘UNDO’ command. Type ‘U’ in the command line and press Enter, or click the Undo button in the Quick Access Toolbar.

Is There a Keyboard Shortcut for TRIM?

Yes, you can use the keyboard shortcut ‘TR’ followed by the Enter key to quickly access the TRIM command, making your workflow more efficient and saving you time during your design process.

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.