Washing machine drum

Note: Size: 0.64 m × 0.64 m footprint (the tiled plinth) and 0.63 m tall. The drum is 0.50 m across and 0.32 m deep (a typical 7–8 kg front-loader drum), and its axle sits 0.38 m above the floor. The origin is at the bottom centre, the plinth rests on y = 0 and the drum opening faces +Z. The GLB has 5,180 triangles in 24 meshes and uses 10 of the 12 kit colours (not warm white or dark wood). Every material is named exactly after its palette colour. The exporter writes one material per mesh, so a name can repeat: recolour by name. Normals are baked flat (non-indexed). Hierarchy: the drum pulley is a child of the drum. The baked clip scene-motion (8 s, seamless) turns the drum group about the horizontal axle through the bearing centre (x = 0, y = 0.38). The drum eases through 2 whole turns and comes to rest at the seam, so angle and speed both match across the loop. The motor pulley turns 5× as far about its own axle (pulley rims 0.15 m and 0.03 m), which also lands on whole turns. The plinth, upright, motor and belt never move. The belt is a static loop: it reads the same while running. Because three-check exports after its determinism seek, the static node pose in the GLB is the t = 2 s pose. Params are baked into the GLB at their defaults and only change the model when the scene is rebuilt in the viewer. tileColour (the kit's 'Tile colour') steps the 16 plinth tiles through white → mint light → mint → mint dark in four bands, and the grout switches to stay in contrast. drumDiameter (0.44–0.56 m) raises or lowers the axle to keep a 7 cm floor clearance. drumDepth (0.26–0.36 m) moves the front opening, while the back stays on the spider. spinTurns sets 1–3 turns per loop. Only the defaults were rendered and checked; the param extremes were not captured. glb-lint: 0 errors and 5 heuristic warnings: material count, per-mesh duplicate materials, non-indexed geometry (deliberate flat shading), nested overlaps (perforations, seal and bolts sit on their parent forms), and a 'detached' flag on the belt. The belt is the only mesh in its group, so it has no sibling to touch, but it is seated 1 mm into both pulley rims. The verdict reads UNVERIFIED only because no host requirements contract was supplied. plan-check passes except for its part-id regex, which rejects the hyphens in the slug-based ids this library requires; the same plan with the slug de-hyphenated passes. three-check accepts the real ids, and all 8 survive the GLB reload.