{"data":{"id":"27853","slug":"car-factory-production-line-mezzanine-stair-26d5c487","title":"Mezzanine Stair (Car Factory Production Line)","summary":"Free 3D model of a straight steel stair up to a 3.6 m mezzanine with yellow handrails, a modular access stair for a car factory game asset kit.","description":"Free 3D model of a straight steel stair up to a 3.6 m mezzanine with yellow handrails, a modular access stair for a car factory game asset kit. Dimensions 1.54 by 4.37 by 4.71 m (X by Y by Z). Metre units, +Y up, +Z front, origin on the footprint at ground level. Connectors: top (walkway) at (0.00, 3.60, 0.00) facing (0, 0, 1). An 18 tread stair rising 3.60 m over a 4.40 m run on blue stringers, with chequer plate treads, dark nosings, a top landing and yellow handrails both sides. The top port meets the stair port on the back edge of a mezzanine walkway bay. Static geometry. Car plant palette: light grey epoxy floor, safety yellow, white plant steel, charcoal, safety orange, equipment blue, two gloss body colours, matt primer, skin, glass and emissive amber. Standard PBR materials with embedded procedural maps. Static geometry; no rig, animation, collision or navigation data.","status":"published","url":"https://3dassets.dev/assets/car-factory-production-line-mezzanine-stair-26d5c487","cdnUrl":"https://cdn.3dassets.dev/assets/27853/v1/model.glb","downloadUrl":"https://3dassets.dev/download/car-factory-production-line-mezzanine-stair-26d5c487","thumbnailUrl":"https://cdn.3dassets.dev/assets/27853/v1/thumb.webp","posterUrl":"https://cdn.3dassets.dev/assets/27853/v1/poster.webp","blurhash":"U78EMC*00MQ*=:-iNHIr00rp_0Ng0h9H-.?b","category":{"slug":"buildings","title":"Buildings & Architecture"},"tags":[{"slug":"modern","title":"Modern"},{"slug":"stylized","title":"Stylized"},{"slug":"interior","title":"Interior"},{"slug":"modular","title":"Modular"}],"license":{"slug":"cc0-1.0","name":"CC0 1.0 Universal","url":"https://creativecommons.org/publicdomain/zero/1.0/","attributionRequired":false},"contributor":{"username":"3dassets","name":"3D Assets","url":"https://3dassets.dev/u/3dassets"},"stats":{"fileSize":32176,"triangles":660,"vertices":1532,"meshes":4,"materials":4,"textures":0,"animations":[],"boundingBox":{"min":[-0.7700952687486696,-0.0000024935969087369614,-4.507650375366211],"max":[0.7700952687486696,4.367546495058718,0.20665901899337769]},"sizeMeters":[1.54,4.368,4.714],"hasDraco":false,"hasMeshopt":false,"hasKTX2":false,"extensionsUsed":["KHR_mesh_quantization"]},"aiGenerated":true,"aiModel":"Claude Fable 5.1","downloads":3,"publishedAt":"2026-09-08T00:58:04.251Z","updatedAt":"2026-09-08T05:19:54.705Z","usage":{"threejs":"import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'\n\nconst loader = new GLTFLoader()\nloader.load('https://cdn.3dassets.dev/assets/27853/v1/model.glb', (gltf) => {\n  scene.add(gltf.scene)\n})","r3f":"import { useGLTF } from '@react-three/drei'\n\nexport function MezzanineStairCarFactoryProductionLine(props) {\n  const { scene } = useGLTF('https://cdn.3dassets.dev/assets/27853/v1/model.glb')\n  return <primitive object={scene} {...props} />\n}\nuseGLTF.preload('https://cdn.3dassets.dev/assets/27853/v1/model.glb')","modelViewer":"<model-viewer src=\"https://cdn.3dassets.dev/assets/27853/v1/model.glb\" alt=\"Mezzanine Stair (Car Factory Production Line)\" camera-controls auto-rotate></model-viewer>","blender":"# Blender 4.x: File > Import > glTF 2.0, or from the Python console after downloading the file.\nimport bpy\nbpy.ops.import_scene.gltf(filepath='model.glb')  # from https://cdn.3dassets.dev/assets/27853/v1/model.glb\n# Metres and +Y up are converted to Blender's Z-up scene automatically.","godot":"# Godot 4: copy model.glb into res://models/ and the editor imports it as a scene.\nvar packed := load(\"res://models/model.glb\") as PackedScene\nvar model := packed.instantiate()\nadd_child(model)","unity":"// Unity: import model.glb with glTFast (Package Manager: com.unity.cloud.gltfast) and drag the prefab in,\n// or load it at runtime straight from the CDN:\nusing GLTFast;\nvar gltf = new GltfImport();\nif (await gltf.Load(\"https://cdn.3dassets.dev/assets/27853/v1/model.glb\")) await gltf.InstantiateMainSceneAsync(transform);"}}}