1. Product Features
2. Intricate Steampunk Aesthetics: Impeccably detailed with sci-fi turbines, multi-tiered hull plating, ventilation ports, and rivets that look incredible when finished in metallic tones.
3. Functional Kinetic Gear Train: Features a fully realized, heavy-duty mechanical gear linkage system. Turning the main drive wheels acts as a kinetic automation sequence, rocking the marine craft on its mounting armature.
4. Smart Backlit Illumination Core: Designed with a hollow core chamber and hidden cable-routing channels traveling down through the support struts into the electronics box base. It cleanly houses a 5V USB LED unit to cast downlighting onto the mechanisms below.
5. Optimized FDM Tolerances: Every gear tooth, axle shaft, and interlocking hull component has built-in mechanical clearances ($0.2\text{mm} - 0.3\text{mm}$) to ensure that parts fit together cleanly right off the print bed without requiring excessive sanding or drilling.

Printing & Assembly Recommendations

1. Filament Choice:
2. The Manta Hull & Gears: Silk Silver, Silk Bronze, or Copper PLA is highly recommended. These filaments catch the ambient light beautifully and replicate real machined metals perfectly without needing paint.
3. The Base & Support Struts: Use a heavy, contrasting Matte Charcoal Black or Iron Grey PLA to give the fixture a firmly grounded, structural look.
4. Slicer Configuration:
5. For Gears and Mechanical Links: Print with at least 4 to 5 perimeters/walls and a solid 30% Infill (Gyroid) to ensure the gear teeth can withstand continuous kinetic movement without snapping.
6. No support material is required for the gear assemblies. For the main ocean craft hull, minimal or organic "tree" supports are recommended only for the lowest overhanging belly sections.
7. Hardware Sourcing:
8. Requires a few standard $M3$ or $M4$ machine screws to securely lock the main gear axes into the base plate.
9. A standard low-voltage 5V USB LED puck or strip section is used for the downlight.