A fully customizable, high-performance ventilation grill designed for real-world utility. Whether you need a small vent for an electronics enclosure, a medium-sized air brick for a shed, or a large circular wall vent, this parametric model handles it all with professional-grade features.

✨ Key Features

• Fully Parametric: Change shapes between Round, Square, and Rectangular profiles in seconds using the MakerWorld Customizer.
• Weather-Shedding Louvers: Vanes are angled (default $45^{\circ}$) to ensure optimal airflow while preventing rain from entering and providing privacy.
• Integrated Mounting: Choose between 0, 2, or 4 mounting holes with built-in countersink geometry for a clean, flush-mount finish.
• Installation Collar: Features a rear rim (collar) that centers the grill perfectly in your cutout, providing a more stable and professional fit.
• Sleek Aesthetics: Optimized for 3D printing with clean lines and no-fuss geometry.

🛠 How to Use

1. Open in Customizer: Set your desired outer dimensions (BASE_WIDTH, BASE_DEPTH).
2. Define your Opening: Match the INNER_W and INNER_D to your specific vent hole size.
3. Select Hardware: Set your screw hole diameter and countersink size to match your specific fasteners.
4. Print: Export the STL and you are ready to go!

🖨 Print Recommendations

• Material: * Indoor: PLA or PETG.
  • Outdoor: ASA or PETG (for UV and weather resistance).
• Orientation: Print flat on the build plate (face down or face up).
• Supports: Generally not required for a $45^{\circ}$ vane angle.
• Walls: Use at least 3 wall loops for structural integrity around the mounting holes.