Alpine Waterwheel Sawmill & Blacksmith Forge

1:1 Overshot Waterwheel Hydraulics, Gattersäge Gang-Saw, Bellows & Trip-Hammer Cutaway

01 / What Was Built

Built with Gemini Carbon, this interactive metric (1 unit = 1.000 m) 3D digital twin simulates a weathered stone-and-timber Alpine watermill (8.40 m × 6.20 m) and adjoining open-bay blacksmith forge (5.60 m × 5.20 m) set in a sunlit 360 m × 360 m mountain valley beside an upstream stone splitter weir (Mühlwehr) and 5.40 m single-arch granite footbridge. Regulating the elevated timber flume's rack-and-pinion sluice gate (0%–100%) physically drives a 4.20 m 24-bucket overshot waterwheel, coupling rotational inertia through conjugate 48T:12T spur and 18T:18T 90° conical mitre bevel gear trains to a 4-blade reciprocating Gattersäge frame-saw, zero-slip brass-riveted leather flat-belt drive, double-chamber cowhide forge bellows, and 4-wiper cam Schwanzhammer trip-hammer. Every hydraulic, kinematic, thermal, and spatial Web Audio foley voice runs on a coupled 60 Hz ODE so closing the sluice gate coasts every shaft, saw stroke, belt clasp, ember surge, and anvil blow smoothly to an exact 0.000 rad/s stop.

02 / Creation Pipeline & Workflow

Engineered with Gemini Carbon across four integrated pipelines and strict neutral-clay inspection gates: (1) OpenCascade B-Rep CAD (build123d) + Blender 5.2 2K PBR for the 4.20 m 24-bucket overshot waterwheel & 48T oak pit spur, 10.02 m timber flume & 12T rack-and-pinion sluice, 18T:18T conical mitre bevels, central Unterflur Pitman carriage, 4-blade Gattersäge frame-saw with downstroke 104T Zahnstange log feed, 4-wiper cam Schwanzhammer trip-hammer, London anvil, leg-vise workbench, and coopered quench barrel; (2) Blender 5.2 procedural masonry & carpentry for the half-timbered watermill, open-bay soot hearth, stepped cutaway curb, and sunken stone machinery pit; (3) dual Stage-2 Image-to-3D evaluation from five #F2F2F2 studio sprites — running both Magnific Cloud Image-to-3D (2 assets generated, 1 shipped: the stratified granite gorge cliff reconstructed at 1.9M faces, seam-welded watertight, decimated to 47,999 tris & Cycles-baked onto clean 2K UV charts in Blender 5.2 for both South & North gorge walls, while the Magnific footbridge draft was rebuilt from scratch in P05 in Blender 5.2 with 23 radial 3D voussoirs/side & cambered cobbles after clay renders exposed flat spandrel walls and baked moss streaks) and Local TripoSG Image-to-3D (3 drafts generated — mossy boulder, stacked timber logs, and North gorge cliff — all 3 retired in P02–P04 after clay close-ups showed soft melted blobs, replaced in Blender 5.2 with planar-cleaved angular granite blocks + CC0 2K rock PBR, a crisp 9-log spruce stack with ±16 mm bark fissures & sculpted growth-ring end-caps, and the unified Magnific cliff alongside 184 drooping-whorl Alpine spruces); and (4) Three.js r187 WebGL2 HalfFloat AgX rendering with Beer–Lambert glacier-turquoise river refraction, pre-AgX blackbody coal incandescence, 6 physics-coupled 3D Web Audio foley voices, and an original G Major / D Mixolydian Alpine pastoral score.

03 / Scene, Simulation & Optical Highlights

01Scene & Scale: Full 360 m × 360 m Alpine mountain valley (X, Z = -180..+180 m) descending from forested northern granite slopes (184 Alpine spruces) into a sunlit downstream meadow plain, where a single continuous mountain river divides at the stone Mühlwehr (X = -26.2 m, Y = +2.98 m) into the level stone headrace canal (Mühlgraben) feeding the 10.02 m timber flume and stepped mossy-boulder rapids reuniting beneath the 5.40 m single-arch footbridge.
02Live Simulation: Deterministic 60 Hz coupled physics linking 0%–100% sluice gate drawdown flow, a g = 9.81 m/s² parabolic overshot pour sheet, and 24 phase-locked equipotential bucket pools (0..7.5 RPM with smooth-Coulomb zero-stop coasting) to: (1) an 8:1 (0..60 SPM) Gattersäge frame-saw with a central Unterflur PitmanRod, downstroke-gated +45 mm/stroke 104T Zahnstange log feed, and live world-plane X = -1.20 m 4-blade kerf splitting; and (2) a 1.5:1 (0..11.25 RPM, 0..45 BPM) blacksmith forge driven by a zero-slip 6-clasp brass-riveted leather flat-belt (0.540 m/rad), 20T mitre bevels, pleated cowhide bellows surging anthracite hearth heat, and a 4-wiper cam drum lifting and tripping the 120 kg Schwanzhammer onto an incandescent iron billet with floor-bouncing sparks.
03Optics & Rendering: HalfFloatType 4x MSAA + AgXToneMapping post-processing pipeline (16-tap circular Bokeh DoF, NaN-safe thresholded UnrealBloomPass, subtle radial chromatic aberration & vignette), Beer-Lambert glacier-turquoise river refraction with solar cobble caustics, pre-AgX blackbody coal incandescence inside a matte-soot firepot, 6 distance-panned physics-coupled Web Audio foley voices, and an original 70–72 BPM G Major / D Mixolydian Alpine pastoral acoustic guitar, zither, and wooden flute score.
04User Controls: Continuous 0%–100% Sluice Gate slider (ArrowLeft/ArrowRight keyboard stepping) with live RPM, SPM, and BPM telemetry; non-levitating Open Mill (O) cutaway removing exterior walls, roofs, and MillFloorCutawayPanels to expose 100% of the 7.64 m × 5.44 m sunken stone machinery pit (Y = -2.15 m) and underfloor drivetrain; Sound [M] and Music [N] toggles; 1–5 camera presets (1 Gorge, 2 Wheel, 3 Sawmill, 4 Forge, 5 Orbit); H HUD toggle; and 2.0..95.0 m terrain-clamped OrbitControls.

Three.jsWebGL2GLSLWeb Audio APIbuild123dBlender 5.2Magnific 3D

Interactive Controls

Sluice 0%–100% · ← / →Regulate timber flume sluice gate flow to drive RPM, SPM & BPM or coast smoothly to 0.000 rad/s

Open Mill [O]Remove roofs, walls & subfloor panels to expose the sunken stone gear pit & underfloor Pitman drivetrain

1–5 Views · Sound [M] · Music [N] · [H]Jump across Gorge, Wheel, Sawmill, Forge & Orbit presets, toggle spatial foley/score, or hide HUD

Metric Standard & Quality Gates

Coordinate & Metric Datum: 1 unit = 1.000 meter, +Y up, +X downstream East, +Z South.
Automated Verification Suite: 10/10 automated geometry and behavior checks (interpenetration across 134 AABB pairs & 0..720° sweeps, attachment in closed + cutaway states, reserved-space sightlines, 10/10 metric measurements, 12/12 render-sanity bounds, and test-01..05 coupled hydraulic, kinematic, cutaway, spatial audio & HUD behavior tests) verified with 10/10 broken-copy mutation proofs.
Master Showcase Capture: 63.33 s (3,800 exact CFR frames) native 3840 × 2160 @ 60 fps master film, passing automated mechanical/audio QC and independent blind-critic verification (VERDICT: WIN, 12/12 PASS).

AI Models & Role

Gemini Carbon

Monumental WebGPU TSL 3D projection mapping, Alpine waterwheel sawmill & trip-hammer forge kinematics, OpenCascade Hot-V twin-turbo V8 CAD digital twins, two-stage Unity 6.6 + Blender 3D action games, and living ecosystems.

04 / Element-by-Element Build Breakdown

Asset foundry provenance — CAD, Blender Cycles PBR, 3D-Gen, TSL/GLSL & procedural audio

Scene Element	Pipeline / Tooling	How It Was Built
Overshot Waterwheel & Pit Spur (4.20 m, 24 Buckets, 48T Gear)	CAD build123d + Blender 5.2	B-Rep mortised oak shrouds, curved bucket blades, 48T involute oak pit spur (D = 2.160 m) with radial wood-grain cogs, cast-iron plummer blocks & Stauffer grease cups + 2K CC0 PBR (92,744 tris)
Flume Trough & Rack-and-Pinion Sluice (10.02 m)	CAD build123d + Blender 5.2	Planked alpine-oak trough on mortised trestle bents with coaxial 12T SluiceHandwheelPinion & sliding SluiceGateBoard (60,680 tris)
Gattersäge Frame-Saw, Conical Bevels & Central Pitman Carriage	CAD build123d + Blender 5.2	12T pit pinion + apex-convergent 18T:18T 90° conical mitre bevels, 32T/24T/16T spur train, central Unterflur PitmanRod (Z = -0.500 m), outboard 12T Ragwheel32T & 104T Zahnstange rack, 4 rip-toothed blades & live-clipped 3.50 m spruce log (259,224 tris)
Schwanzhammer Trip-Hammer, Zero-Slip Flat-Belt, Bellows & Tuyere	CAD build123d + Three.js Parametric	Procedural zero-slip UV-scrolling + 6-clasp brass-riveted leather ForgeDriveBeltLoop (6.08 m closed arc-tangent spline), 20T mitre bevel transfer, 4-wiper cam ring engaging a forged Prellzunge wear tongue, London anvil on barked oak stump, oiled-cowhide bellows & curved TuyerePipe (187,826 tris)
Watermill, Open-Bay Forge, Soot Hearth & Floorless Machinery Pit	Blender 5.2 Procedural + CC0 2K PBR	Stepped granite-coped cutaway curb (Y = -0.34 m / -1.52 m gear bay), removable MillFloorCutawayPanels, Y = -2.15 m sunken stone machinery pit with sawdust drifts & 6 oak/granite trestle piers, larch shingles & carbon-black soot firebox (284,438 tris)
Blacksmith Workbench, Leg Vise & Quench Barrel	CAD build123d + Blender 5.2	Chamfered oak workbench, forged leg vise, 6 smithing hand tools, billet stock & 18-stave coopered water barrel with dark specular quench water (160,750 tris)
Stratified Granite Gorge Cliffs (South & North Walls)	Magnific Image-to-3D + Blender 5.2	Shipped (1 of 2 Magnific Cloud 3D assets): studio #F2F2F2 sprite reconstructed via Magnific 3D (1.9M faces), seam-welded watertight, decimated to 47,999 tris & Cycles-baked onto topological-disk 2K UV charts; unified in P04 across both South & North gorge walls
Single-Arch Stone Footbridge (5.40 m Span)	Magnific 3D Draft → Blender 5.2 Masonry	Initially generated via Magnific Cloud 3D, then rebuilt from scratch in P05 in Blender 5.2 after clay renders exposed flat spandrel walls & baked moss streaks — shipping 23 radial 3D voussoirs/side, proud keystone, recessed mortar joints & cambered cobble deck (50,844 tris)
Alpine Pine Forest, Cleaved Granite Boulders & 9-Log Spruce Stack	Local TripoSG Drafts → Blender 5.2 Procedural + CC0 2K PBR	8.5 m drooping-whorl Alpine spruces (184 instances, 172,305 tris), plus planar-cleaved angular granite blocks (4,152–4,200 tris) and a crisp 9-log 3D spruce stack (±16 mm bark fissures + sculpted growth-ring end-caps, 46,008 tris) — replacing all 3 local TripoSG drafts (boulders, log stack, and North cliff) in P02–P04 after clay close-ups revealed soft melted forms
Single-River Weir Hydraulics, Hearth Fire, Sparks & Sawdust	Three.js + Custom GLSL	Rolling 360 × 360 m Alpine valley terrain, Mühlwehr split + cobble-refractive rapids, ballistic overshot waterfall & concave bucket menisci, 56-chunk ember bed, 22 hearth flame plumes, parabolic sparks & 1,600 3D sawdust grains
Spatial Foley Soundscape & Alpine Pastoral Score	Procedural Web Audio API	6 3D-panned physics-coupled foley voices (mountain wind, river/sluice rush, wheel/cog rumble, downstroke rip-saw rasp & ragwheel click, bellows whoosh & ember crackle, 1:1 anvil clang & spark sizzle) + pastoral score & valley ConvolverNode reverb
Alpine Valley Lighting & Scanned Surface Maps	CC0 HDRI + Scanned 2K PBR	Poly Haven 2K HDRI environment lighting + CC0 stone, wood, slate, bark, gravel & metal 2K PBR maps