2. Open the Material Editor and assign the material ball to the model.

3. Find the Wireframe option in the picture in the Material Editor panel and select it. Then set the diffuse color to all black. The remaining parameters can be ignored.

4. Find the "Extended Parameters" tab in the Material Editor panel, where you can set the thickness of the wireframe. The specific values are adjusted according to the final rendering results.

5. Click "Perspective", and then click "Quick Rendering". The result is all black and indistinguishable. This is because you also need to set the environment background color.

6. Click the button shown in the red box of the rendering effect diagram above to open the "Environment and Effect" setting panel, and change the color after "Environment" from black to pure white.

7. Render the "perspective" again to get the effect as shown in the figure. In this way, printing with a black-and-white printer can clearly reflect the model design effect.