Chengdu Blood Center - Wisdom Love Blood Donation Hub Scale Model Production Documentation
I. Primary Structure Fabrication
Frame & Wall System
Precision Machining: 6mm high-density ABS sheets processed via 5-axis CNC milling, producing interlocking curved roof segments, wall panels, and stepped base components with ±0.1mm edge tolerance.
Adhesive-Free Assembly: Laser-cut mortise-tenon joints enable seamless assembly of silver-grey exterior panels, eliminating visible adhesive residue.
Curved Roof Critical Processes
Thermoforming Integration: Custom stainless-steel molds heated to 140°C triple-press 2mm ABS sheets to prevent material memory distortion.
Casting Dimensional Elements: "Wisdom Love Blood Donation Hub" acrylic lettering fabricated through lost-wax investment casting with <0.05mm dimensional variance, installed via pre-set copper mounting posts.
II. Visual Systems Engineering
Procedure Display Window (High-Fidelity Graphics)
Titanium Mesh Printing: 800-mesh nickel screens execute 6-color registration on 0.3mm PET film, achieving 1200dpi resolution on UV-cured donor procedure infographics.
Magnetic Retention System: Neodymium magnets embedded in graphic substrates align with ferromagnetic window frames, enabling tool-free future content replacement.
Interior Scene Window (Micro-Diorama)
Medical-Grade 1:50 Scaling: SLA-printed donor chairs feature operable recline mechanisms. 5000K LED strips laminated within 3mm acrylic light guides meet clinical lighting standards.
Anti-Fogging Treatment: Dual-sided nano-hydrophobic coating prevents condensation across ±15°C ambient temperature differentials.
III. Terrain & Site System
Foundation & Exterior Elements
Anodized Aluminum Platform: Media-blasted then hard-coat anodized to 20μm±2 thickness in metallic silver.
Micro-Furniture Fabrication: CNC-turned 316L stainless steel table/chair legs combined with ivory-white piano lacquer surfaces (7-stage bake coating process, 3H pencil hardness rated).
IV. Color Management Protocol
Primary Color System
Triple-Stage Application: Epoxy primer → automotive-grade metallic basecoat → UV-stable matte clearcoat.
Defect Mitigation: Controlled spray environment (25°C/45%RH) ensures >90% coating thickness uniformity.
Branding Implementation
Hybrid Printing Process: "Chengdu Blood Center" bilingual text executed via 2000-mesh white underbase screen printing followed by ±5μm-registration pad-printed red/black layers.
