circular mesh grille 3d model

Create a circular protective mesh or grille with a clean, symmetrical design. The outer frame should be a perfect circle, with the entire interior filled by a uniform grid of small square openings. Each square should be small enough that larger objects, fingers, and debris cannot pass through while still allowing strong airflow. The grid bars should have consistent thickness and smooth, rounded edges for strength and safety. Design the grille as a single, watertight, 3D-printable part with a flat back and a slightly rounded front face. Ensure the mesh is evenly spaced across the entire circular area and blends seamlessly into the outer ring without gaps. Optimize the structure for durability, rigidity, and minimal airflow restriction. The model should have clean topology, sharp geometric accuracy, and no unnecessary decorative elements, making it suitable as a protective fan or vacuum intake cover.