Using only Three.js (including OrbitControls, STLExporter, and GLTFExporter — all vendored locally with zero external CDN), generate an original, self-contained single-page 3D model of a desktop "mechanical moon phase instrument," approximately 180×180×220 mm overall, that satisfies:
[Structure & Geometry] 11 named part groups: lower base (octagonal, with feet), upper base (with 8 embossed moon phase symbols and an annular groove), sun core (stepped light column, with a real Ø5×5 mm blind hole reserved on top for an LED), core placeholder piece, moon sphere (with crater relief), lunar orbit ring (with support posts and foot pads), crank handle, gear transmission set (driving gear / driven gear / bushing / rotating arm / counterweight, 16:24 external meshing), observation hood (dome + front window + arched brow trim, split into upper and lower pieces), shaft pins, and washer set. All must be procedural real geometry: wall thickness ≥2 mm, details ≥0.8 mm, 1 unit = 1 mm.
[Phases & Interaction] 8 moon phases (new moon / waxing crescent / first quarter / waxing gibbous / full moon / waning gibbous / last quarter / waning crescent) driven by real lighting — the central warm point light is the sun core; no texture-based faking allowed. 14 interactions: moon phase buttons, orbital angle slider, auto-revolution, drag-the-crank to drive the moon, auto-rotating display platform, exploded view, assembly/individual parts toggle, wireframe mode, part visibility toggling, click a part to see its description, camera presets, left-drag rotate / scroll zoom / right-drag pan, GLB full-assembly export, and single-part STL download.
[Visual Style] Warm ivory-white studio background (radial gradient #f7f4ed→#eae5d9→#ddd6c5), light warm stone-colored circular ground with distance fog for seamless blending; matte black housing + brushed brass parts + cyan accents, ACES tone mapping, soft shadows, overall premium product-photography style.
[Print Deliverables] Export the GLB full assembly and all individual STLs; every STL repaired into an independent, closed, sliceable watertight solid (true boolean unions, fix non-manifold edges / broken faces / zero-thickness faces, the LED blind hole genuinely recognizable, the observation hood's upper and lower halves each closed, the five gear-set pieces exported independently); verify each part with Trimesh for watertightness / volume / normals / bounding box; do not provide faked 3MF files (note that post-processing tools are required for conversion); keep the honest disclaimer of "geometry-level printability inference, not yet validated by slicing or actual printing"; original design, free of brand/IP infringement.
[Extras] Cover image: an actual render from a 55° first-quarter-moon angle with the UI hidden. Optionally generate a component entrance assembly animation: parts quickly drop into place one by one → one full rotation → mid-rotation switch to wireframe X-ray view → switch back to solid and freeze.

Using only Three.js (including OrbitControls, STLExporter, and GLTFExporter — all vendored locally with zero external CDN), generate an original, self-contained single-page 3D model of a desktop "mechanical moon phase instrument," approximately 180×180×220 mm overall, that satisfies:
[Structure & Geometry] 11 named part groups: lower base (octagonal, with feet), upper base (with 8 embossed moon phase symbols and an annular groove), sun core (stepped light column, with a real Ø5×5 mm blind hole reserved on top for an LED), core placeholder piece, moon sphere (with crater relief), lunar orbit ring (with support posts and foot pads), crank handle, gear transmission set (driving gear / driven gear / bushing / rotating arm / counterweight, 16:24 external meshing), observation hood (dome + front window + arched brow trim, split into upper and lower pieces), shaft pins, and washer set. All must be procedural real geometry: wall thickness ≥2 mm, details ≥0.8 mm, 1 unit = 1 mm.
[Phases & Interaction] 8 moon phases (new moon / waxing crescent / first quarter / waxing gibbous / full moon / waning gibbous / last quarter / waning crescent) driven by real lighting — the central warm point light is the sun core; no texture-based faking allowed. 14 interactions: moon phase buttons, orbital angle slider, auto-revolution, drag-the-crank to drive the moon, auto-rotating display platform, exploded view, assembly/individual parts toggle, wireframe mode, part visibility toggling, click a part to see its description, camera presets, left-drag rotate / scroll zoom / right-drag pan, GLB full-assembly export, and single-part STL download.
[Visual Style] Warm ivory-white studio background (radial gradient #f7f4ed→#eae5d9→#ddd6c5), light warm stone-colored circular ground with distance fog for seamless blending; matte black housing + brushed brass parts + cyan accents, ACES tone mapping, soft shadows, overall premium product-photography style.
[Print Deliverables] Export the GLB full assembly and all individual STLs; every STL repaired into an independent, closed, sliceable watertight solid (true boolean unions, fix non-manifold edges / broken faces / zero-thickness faces, the LED blind hole genuinely recognizable, the observation hood's upper and lower halves each closed, the five gear-set pieces exported independently); verify each part with Trimesh for watertightness / volume / normals / bounding box; do not provide faked 3MF files (note that post-processing tools are required for conversion); keep the honest disclaimer of "geometry-level printability inference, not yet validated by slicing or actual printing"; original design, free of brand/IP infringement.
[Extras] Cover image: an actual render from a 55° first-quarter-moon angle with the UI hidden. Optionally generate a component entrance assembly animation: parts quickly drop into place one by one → one full rotation → mid-rotation switch to wireframe X-ray view → switch back to solid and freeze.