Fusion 360 is a powerful CAD software that allows users to create 3D models for various purposes, including 3D printing and rendering. One of the common requirements for 3D printing and rendering is to export the 3D model into a file format that can be easily used by other software or machines. OBJ is one such widely used file format for 3D models, and Fusion 360 provides a simple way to export OBJ files.

Here's how you can export OBJ in Fusion 360:

1. Open your 3D model: Launch Fusion 360 and open the 3D model that you want to export as an OBJ file.

2. Navigate to the export settings: Once the model is open, navigate to the 'File' menu and select 'Export'. This will open the export settings panel.

3. Select OBJ as the file format: In the export settings panel, choose OBJ as the file format from the available options. Fusion 360 supports a variety of file formats for export, and OBJ is usually listed among the options.

4. Adjust export settings: Depending on your specific requirements, you may need to adjust additional export settings such as units, quality, or material properties. Make sure to review and adjust these settings as needed before proceeding with the export.

5. Export the OBJ file: Once you have configured the export settings to your satisfaction, click the 'OK' or 'Export' button to initiate the export process. Fusion 360 will generate the OBJ file based on your model and settings.

6. Save the OBJ file: Choose a location on your computer where you want to save the exported OBJ file and provide a name for the file. Then click 'Save' to complete the export process.

That's it! You have successfully exported your 3D model as an OBJ file from Fusion 360. You can now use this file for 3D printing, rendering, or any other purpose that requires the OBJ file format.

In summary, exporting OBJ files in Fusion 360 is a straightforward process that allows you to easily transfer your 3D models to other software or machines for further use. Whether you are creating prototypes for 3D printing or working on visualizations for rendering, knowing how to export OBJ in Fusion 360 can be a valuable skill for any 3D modeling enthusiast.