When working with 3D models, you may encounter OBJ files that come with an accompanying MTL file. While MTL files contain material information for the 3D model, there are instances when you may want to remove the MTL file from the OBJ for various reasons such as file size optimization or simplifying the project structure. Here’s a step-by-step guide on how to remove MTL file from OBJ:

1. Open the command prompt or terminal on your computer.

2. Navigate to the directory where your OBJ and MTL files are located using the ‘cd’ command.

3. Once in the directory, type the following command and press enter:

`copy /b your_model.obj +,, your_model_clean.obj`

Replace `your_model.obj` with the name of your original OBJ file and `your_model_clean.obj` with the desired name for the new OBJ file without the MTL reference.

4. After running the command, a new OBJ file will be created in the same directory without any reference to the MTL file.

5. You can now use the newly created OBJ file for your 3D modeling projects without the MTL file.

By following these steps, you can easily remove the MTL file from OBJ and optimize your 3D modeling projects. Remember to always create a backup of your original files before making any modifications. This process can help simplify your project structure and make it easier to manage and share your 3D models. Whether you’re a professional 3D designer or just getting started with 3D modeling, knowing how to manipulate file formats will help you streamline your workflow and improve your overall efficiency. Try it out and see the difference it makes in your 3D projects!