gantry crane 3d model

Create a high-quality 3D model ready for 3D printing (STL format) based on the image I will upload. The model should accurately represent a blue portainer which is a crane used to load container to ships as shown in the image. Model details: • Output file: STL (optimized for 3D printing) • Style: realistic • Geometry: Closed, watertight mesh (no holes, suitable for slicing and printing) • Size: approximate height in 20 cm • Orientation: Standing upright / frontal view as main reference • Textures: No textures needed • Topology: Clean surface, low to medium polygon count for smooth print • Base: it is supported by wheels that rolls over trails. The wheels must be designed free to roll at a basis. If the image shows only one angle, please extrapolate the missing parts to create a full 3D model consistent with the design. The result should look natural, printable, and visually faithful to the reference. Purpose: Physical 3D printing in filament type. Please generate the final model in STL or OBJ fo