industrial factory 3d model

**"Generate a high-quality, high-precision 3D architectural layout model of a modern automotive engine manufacturing plant complex, highly optimized for a 15x15cm micro-scale STL 3D print. The model must sit on a solid, perfectly flat square base. Architectural Components to Include: One main, massive industrial pavilion split into three interconnected continuous sections representing: Casting (foundry area), Machining, and Assembly zones. The roofs of these three main sections must feature repetitive, sharp, and clean industrial sawtooth (shed) roof patterns. A distinct, smaller, modern two-story corporate administrative building positioned at the front of the complex with clean rectangular lines. Miniature loading dock gates along the sides of the assembly pavilion. Technical 3D Printing Output Requirements: The entire 3D mesh must be 100% solid, manifold, and watertight (zero open faces, zero inverted normals, and fully solid internal geometry). Optimized for micro-scale resin (SLA)