hollow cylinder 3d model

Create a hollow cylindrical 3D object optimized for FDM 3D printing, with no sharp overhangs and no need for support structures. High precision mechanical part, clean geometry, no textures. Base dimensions: Outer diameter of the cylinder: 17.5 mm Total height of the cylinder: 15.5 mm The object is hollow along its entire height and fully coaxial Wall thickness: From the bottom of the cylinder up to a height of 14.5 mm, the wall thickness is 2.4 mm The remaining top section of 1.0 mm height has a wall thickness of 4.85 mm Attached shape: On the bottom end of the hollow cylinder (the side with 2.4 mm wall thickness), attach an axially aligned, smoothly rounded hollow cylindrical extension The attached extension has: Height: 5 mm Outer diameter: 17.5 mm Wall thickness: 2.5 mm The transition between the main cylinder and the attached extension is smooth and rounded, suitable for support-free FDM printing Technical requirements: All dimensions are in millimeters