futuristic bottle cap 3d model

Design a futuristic ergonomic bottle cap with an industrial and sculptural aesthetic, optimized for controlled airflow. The cap has a cylindrical base with realistic internal screw threading compatible with small bottle standards (24–28 mm neck, pitch 2.5–2.7 mm, 2–3 start threads, tolerance +0.2 mm). Inside the cap, integrate a central vertical air intake channel aligned with a circular opening on the front (diameter 6–10 mm). This channel acts as the main airflow entry. From this central intake, design an internal airflow system that splits into two separate curved channels leading to the two top cylindrical protrusions (“nasal” outlets). These internal channels should be smooth, rounded, and optimized to maximize airflow efficiency and minimize turbulence. The two top cylinders are hollow and function as خروج air outlets. They are tilted 15–20 degrees outward from vertical, with internal bores connected directly to the airflow channels. Ensure the internal geometry directs most