# Mezzanine access stair, 3 m rise (Machine Shop and Factory Hall)

Straight steel stair climbing 3 m over a 3.6 m run: charcoal treads between two stringers, yellow handrails on both sides and a top landing plate. The bottom step is toward +Z.

- **URL:** https://3dassets.dev/assets/machine-shop-and-factory-hall-machine-shop-and-factory-fb7b5ee9
- **GLB (direct, CORS *, immutable):** https://cdn.3dassets.dev/assets/27752/v1/model.glb
- **Download (counted):** https://3dassets.dev/download/machine-shop-and-factory-hall-machine-shop-and-factory-fb7b5ee9
- **Licence:** CC0 1.0 Universal: https://creativecommons.org/publicdomain/zero/1.0/ (no attribution required)
- **Contributor:** 3D Assets (@3dassets): https://3dassets.dev/u/3dassets
- **Category:** Buildings & Architecture
- **Tags:** Modern, Stylized, Interior, Kit / Set
- **Geometry:** 432 triangles, 996 vertices, 3 meshes, 3 materials, 0 textures
- **Size (m):** 1.38 × 4.041 × 3.741
- **Animations:** none
- **File size:** 0.02 MB
- **Downloads:** 1
- **AI used (contributor-reported):** yes; model: Claude Fable 5.1

## About

Straight steel stair climbing 3 m over a 3.6 m run: charcoal treads between two stringers, yellow handrails on both sides and a top landing plate. The bottom step is toward +Z. Free 3D model for machine shop, factory and industrial game scenes in Unity, Godot, Unreal, three.js and Blender. Overall 1.38 by 4.04 by 3.74 m (X by Y by Z). Metre units, +Y up, the operator side toward +Z, resting on y=0 with the origin on the footprint. Static geometry; no rig, collision or navigation data. Static piece.

## Use with three.js

```js
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'

const loader = new GLTFLoader()
loader.load('https://cdn.3dassets.dev/assets/27752/v1/model.glb', (gltf) => {
  scene.add(gltf.scene)
})
```

## React Three Fiber

```jsx
import { useGLTF } from '@react-three/drei'

export function MezzanineAccessStair3MRiseMachineShopAndFactoryHall(props) {
  const { scene } = useGLTF('https://cdn.3dassets.dev/assets/27752/v1/model.glb')
  return <primitive object={scene} {...props} />
}
useGLTF.preload('https://cdn.3dassets.dev/assets/27752/v1/model.glb')
```

## <model-viewer>

```html
<model-viewer src="https://cdn.3dassets.dev/assets/27752/v1/model.glb" alt="Mezzanine access stair, 3 m rise (Machine Shop and Factory Hall)" camera-controls auto-rotate></model-viewer>
```

## Blender

```python
# Blender 4.x: File > Import > glTF 2.0, or from the Python console after downloading the file.
import bpy
bpy.ops.import_scene.gltf(filepath='model.glb')  # from https://cdn.3dassets.dev/assets/27752/v1/model.glb
# Metres and +Y up are converted to Blender's Z-up scene automatically.
```

## Godot

```gdscript
# Godot 4: copy model.glb into res://models/ and the editor imports it as a scene.
var packed := load("res://models/model.glb") as PackedScene
var model := packed.instantiate()
add_child(model)
```

## Unity

```csharp
// Unity: import model.glb with glTFast (Package Manager: com.unity.cloud.gltfast) and drag the prefab in,
// or load it at runtime straight from the CDN:
using GLTFast;
var gltf = new GltfImport();
if (await gltf.Load("https://cdn.3dassets.dev/assets/27752/v1/model.glb")) await gltf.InstantiateMainSceneAsync(transform);
```

---
JSON: https://3dassets.dev/api/v1/assets/machine-shop-and-factory-hall-machine-shop-and-factory-fb7b5ee9 · Loads with a plain GLTFLoader: no Draco/KTX2 loaders needed.