How Do You Fillet in AutoCAD?

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Fillet is a widely used command in AutoCAD that allows you to create rounded corners and edges between two lines or objects. It is an essential tool for creating smooth transitions and improving the aesthetics of your drawings. In this tutorial, we will explore how to use the Fillet command effectively in AutoCAD.

Step 1: Accessing the Fillet Command

To access the Fillet command, you can either:

  • Click on the ‘Modify’ panel in the ‘Home’ tab and select ‘Fillet’ from the drop-down menu.
  • Alternatively, you can type ‘FILLET’ in the command line and press Enter.

Step 2: Selecting Objects

Once you have accessed the Fillet command, you need to select the objects that you want to fillet. You can choose lines, arcs, circles, polylines, or any combination of these objects. To select objects:

  1. Type ‘P’ in the command line and press Enter to enable object selection by picking points.
  2. Select the first object by clicking on it.
  3. Select additional objects by clicking on them one by one or by using a selection window.
  4. Press Enter when you have finished selecting objects.

Step 3: Specifying Fillet Radius

After selecting your objects, AutoCAD will prompt you to specify a fillet radius. The fillet radius determines how large or small the rounded corner will be. To specify a fillet radius:

  1. Type ‘R’ in the command line and press Enter.
  2. Enter the desired fillet radius and press Enter again.

Step 4: Filleting the Objects

Now that you have selected your objects and specified a fillet radius, it’s time to apply the fillet. To do this:

  • Type ‘J’ in the command line and press Enter to create a ‘jogged’ or straight line fillet.
  • Type ‘T’ in the command line and press Enter to create a ‘tangent’ or arc fillet.
  • Type ‘0’ (zero) in the command line and press Enter to create a zero-radius fillet, effectively removing any sharp corners.

You can experiment with different options to achieve the desired result. Once you have chosen an option, AutoCAD will automatically apply the fillet to your selected objects.

Additional Tips:

Undoing Fillets:

If you make a mistake or want to remove a fillet, you can use the Undo command (Ctrl+Z) or type ‘U’ in the command line and press Enter.

Fillet Multiple Objects:

If you want to apply the same fillet radius to multiple objects, you can use the Multiple option by typing ‘M’ in the command line before selecting your objects. This allows you to quickly apply consistent fillets.

Fillet Settings:

To access additional Fillet settings such as Trim mode or Modeless operation, type ‘FILLET’ in the command line and press Enter. This will open up the Fillet Options dialog box where you can customize various parameters according to your requirements.

By following these steps and exploring different options, you will be able to effectively use AutoCAD’s Fillet command to create smooth transitions and enhance the quality of your drawings.