round tower pylon 3d model

Create a 3D printable model of a round tower pylon inspired by the Jacques Chaban-Delmas lift bridge in Bordeaux, France. The tower should be tall and slender with a cylindrical shape, maintaining a height-to-width ratio of approximately 10:1. The model must be hollow on the inside with 2-3mm wall thickness. Include a vertical triangular cross-section groove running along the exterior side of the tower, sized for a friction fit to allow a piece of foam to slide in and be held securely. The design should have clean, modern lines and be optimized for FDM 3D printing as an STL file