How to Make Rounded Corners in AutoCAD?

Steps to Create Rounded Corners in AutoCAD

Creating rounded corners in AutoCAD can enhance the aesthetics of your designs. Whether for a simple rectangle or complex shapes, achieving smooth corners is straightforward. Below are detailed steps to accomplish this in AutoCAD 2025.

Method 1: Using the Fillet Command

1. Accessing the Command:

   • Open your AutoCAD drawing and navigate to the command line. Type FILLET and press Enter.

2. Setting the Fillet Radius:

   • Before selecting the objects, specify the radius that will define the curvature of your rounded corners. For example, type R then press Enter, and input your desired radius value.

3. Selecting Lines:

   • Click on the first line you want to fillet. Once selected, click on the second line. AutoCAD will automatically create a rounded corner between these two lines.
4. Continuing with More Edges:
   • If there are additional corners to round, simply continue selecting edges until all desired corners are filleted.

Method 2: Using the Corner Round Tool

1. Initiating the Corner Round Tool:

   • Access this tool by typing ROUND in the command line and then pressing Enter.

2. Specifying Radius:

   • Just like in the Fillet command, you will need to define the radius of the rounded corner. This is done by typing R followed by your radius value.
3. Selecting the Corners:
   • Click on the two adjacent edges that form the corner you want to round. The tool will then generate a rounded corner based on the specified radius.

Method 3: Creating Rounded Corners on a Rectangle

1. Drawing a Rectangle:

   • Use the RECTANGLE command to create your base rectangle. Specify the corner points according to your design requirement.

2. Applying Fillet to Each Corner:

   • After your rectangle is drawn, you can round each corner by using the FILLET method for each corner individually.
3. Adjusting the Radius for Specific Corners:
   • If different radius values are needed for distinct corners, repeat the Fillet command for each specified corner with its unique radius.

FAQs

Q1: Can I change the radius of a rounded corner after it’s been created?
Yes, to modify the radius, select the corner with the FILLET command, set a new radius, and reselect the edges to apply the updated curvature.

Q2: Is there a way to make rounded corners without using the Fillet command?
Certainly, you can also manually draw arcs using the ARC command to create rounded corners, although this method requires more precision and is less automated.

Q3: What if I want more complex shapes with rounded corners?
For complex shapes, consider using a combination of the Fillet and Trim commands, or explore the SPLINE command for freeform shapes, ensuring to apply rounded corners as needed.