After sealing the 3D printer enclosure, the exhaust system is designed to minimize air turbulence and ensure efficient airflow. To facilitate proper ventilation, an 80mm hole must be drilled in the enclosure, and a 50mm diameter duct should be used for the connecting pipe. The interior of the fan shroud should be left with sufficient clearance; users are advised to purchase acoustic foam separately to fill the gaps and mitigate excessive noise. Feel free to download and print it out!