sci-fi hangar diorama 3d model

Create a large-scale modular 3D printable sci-fi hangar diorama for 4 figures, each 42 cm tall. GENERAL CONCEPT: - Style: retro anime robot hangar (1970s–1980s) - Open “cutaway” design (no side walls) - Industrial sci-fi environment with panels, pipes, vents, control consoles - Designed as a premium display base for collectible figures DIMENSIONS: - Total width: ~780 mm - Height: ~540 mm - Depth: ~280 mm PRINTING CONSTRAINTS (IMPORTANT): - Optimized for FDM printing (Bambu Lab) - Maximum part size: 200 x 200 mm - All parts must be printable WITHOUT supports - Flat surfaces for bed adhesion MODULAR STRUCTURE: - Base split into 3 parts - Back wall split into 3 vertical panels (left, center, right) - Top frame split into 2 parts (no full ceiling) - 4 separate raised platforms for figures CONNECTION SYSTEM: - Use cylindrical pin system for all joints - Pin diameter: 5 mm - Hole diameter: 5.2 mm - Depth: 6 mm - Add 0.2 mm tolerance for FDM printing - Include simple alignment lips (1 mm