How Do I Import STL Files Into AutoCAD?

Importing STL files into AutoCAD can be a useful skill to possess, especially if you work with 3D models. STL (Standard Tessellation Language) files are commonly used in 3D printing and are a popular file format for exchanging 3D models between different software programs. In this tutorial, we will guide you through the steps to import STL files into AutoCAD.

Step 1: Open AutoCAD

To start the process, open AutoCAD on your computer. Once it’s launched, you should see the AutoCAD interface ready for your next action.

Step 2: Access the “Insert” Tab

Next, navigate to the “Insert” tab located at the top of the AutoCAD window. Click on it to reveal a variety of options related to inserting external files and objects.

Step 3: Click on “Import”

In the “Insert” tab, you’ll find an option called “Import.” Click on it to open a dialog box that allows you to select and import external files into your AutoCAD project.

Step 4: Locate and Select Your STL File

In the Import dialog box, browse through your computer’s directories and locate the STL file you want to import into AutoCAD. Once you find it, select it by clicking on it once.

Step 5: Adjust Import Settings

After selecting your STL file, click on the “Open” button in the dialog box. This will open another dialog box where you can adjust various settings related to how your STL file is imported into AutoCAD.

  • Unit: Choose the appropriate unit of measurement for your model. This ensures that the imported STL file is scaled correctly within your AutoCAD project.
  • Insertion Point: Define the insertion point for the imported STL file. This determines where the model will be placed in your AutoCAD drawing.
  • Rotation: Specify the rotation angle for the imported STL file if needed.

Take your time to review and adjust these settings according to your requirements. Once you’re satisfied, click on the “OK” button to proceed with the import process.

Step 6: Place Your Imported STL File

After confirming the import settings, you can now place your imported STL file within your AutoCAD project. Click on a desired location in your drawing area to insert the model. You can also specify a specific scale factor by typing in a value or use reference points for precise placement.

Step 7: Edit and Modify Your Imported Model

Congratulations! You have successfully imported an STL file into AutoCAD.

Now, you can further edit and modify it using AutoCAD’s powerful tools and features. Feel free to make any necessary adjustments, add dimensions, or apply customizations as required by your project.


The ability to import STL files into AutoCAD opens up new possibilities for working with 3D models. Whether you are collaborating with others or preparing files for 3D printing, this skill will undoubtedly prove valuable in various industries. By following this step-by-step tutorial, you can now seamlessly incorporate external STL files into your AutoCAD projects and take full advantage of their design capabilities.