Is the Bay doors 3D model free for commercial use?

Yes. It is free under the 1DesignTool 3D library license: use it in personal and commercial work — games, apps, websites, renders, ads and client projects — and modify it as you like, with no credit required. What you can't do is re-sell or re-distribute the file on its own or inside a model pack.

What file format is it, and how big is it?

A single binary glTF 2.0 file (.glb), 156 KB: 1,780 triangles, 5,340 vertices and 23 materials, modelled in metres at 4.9 m × 5.4 m × 2.4 m.

Is Bay doors animated?

Yes — the GLB carries a baked animation (8.0 s), ready to play with any glTF animation mixer.

Which engines and tools can open it?

Anything that reads glTF 2.0. three.js, React Three Fiber, Babylon.js, Godot 4 and Blender import the GLB directly; Unity and Unreal Engine load it through their glTF importers. The snippets above show the exact code for three.js, React Three Fiber, Godot and Blender.

How was the Bay doors 3D model made?

Claude Code (Claude Opus 5.5) generated it inside 1DesignTool's 3D template from a written brief, then the design kit's checks verified the geometry and the GLB before it was published. You can make your own the same way with 1DesignTool.

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Bay doors

A low-poly fire station engine-bay entrance: a pair of engine-red side-hung doors with glazed upper lights, raised lower panels and a white livery band, set in a brick portal with a white surround, keystone, coping and two red alarm lamps. A baked 8 s loop swings the doors out and shut on their brass hinges.

Original GLB156 KB Poster

Left rail: colours and the 4 knobs the agent wrote into this model — they rebuild the geometry and go into your download. Right rail: looks for the viewer. Drag to orbit, scroll to zoom.

Triangles: 1,780
Vertices: 5,340
Meshes · materials: 23 · 23
Size (W × H × D): 4.9 m × 5.4 m × 2.4 m
File: GLB · 156 KB
Animation: scene-motion · 8.0s
Style: Low-poly
Collection: Fire Station

Palette · named materials

engine red: door stiles, rails and raised panels (body)#c32222
engine red dark: recessed door panels (body)#821717
engine red light: alarm lamp lanterns (accent)#db5757
brick: piers, lintel and parapet (base)#9e3d2e
brick dark: plinth and corner quoins (base)#63261d
brick light: soldier course band and parapet panel (trim)#c66253
brass: hinge knuckles, pull bars, pinstripes, lamp brackets (accent)#b28c34
white: livery band across the doors (trim)#f4f1ec
warm white: door surround, keystone, coping, glazing bars, apron line (trim)#f2ede2
soot black: glass, hinge straps, pintles, cane bolts, lamp caps (glass)#1b1b22
mid grey: threshold apron (base)#7d828c
dark wood: door stop lining the reveal (trim)#3d2a1c

Use it

import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/fire-station-bay-doors/fef66fbbf8/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

const mixer = new THREE.AnimationMixer(gltf.scene);
gltf.animations.forEach((clip) => mixer.clipAction(clip).play());
// in your loop: mixer.update(delta)

How it was made

The brief given to 1DesignTool's “3D object” template:

Bay doors for the Fire Station kit. Design it as one clear asset at believable real-world scale for that setting (state the size in metres in meta.notes), with its main parts modelled and named, readable at thumbnail size and from every orbit angle. It moves: author a seamless baked loop (2–12 s) with every pivot exactly at its hinge, axle or swivel, and keep the base still. This is one part of the Fire Station kit (Low-poly style, flat-lowpoly direction): Ready for the alarm. Use ONLY the kit palette, by name: engine red #c32222, brick #9e3d2e, brass #b28c34, white #f4f1ec, engine red dark #821717, brick dark #63261d, engine red light #db5757, brick light #c66253, soot black #1b1b22, warm white #f2ede2, mid grey #7d828c, dark wood #3d2a1c. Every material's `name` must be exactly the palette colour it uses — the GLB carries these names so the kit recolours as one; an unnamed material fails delivery. Kit knob: expose a param `engineLivery` (0–1, default 0.5) for the kit's "Engine livery" setting wherever it makes sense on this part, and keep that id.

Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
Direction: Low-poly · family abstract-kinetic
three-check PASS · glb-lint PASS

Make your own with 1DesignTool →

Named parts · 6

Bay doors
Brick portal
Threshold apron
Alarm lamps
Left door leaf
Right door leaf

Note: Size: 4.92 m wide (coping and apron), 5.38 m tall to the parapet coping, a 0.46 m deep wall, with a 3.6 × 4.0 m clear opening; with the doors fully open the footprint reaches about 2.05 m in front of the wall face. Origin at the bottom centre of the portal (the wall is centred on z = 0), resting on y = 0, doors swing toward +Z. Motion: one 8 s seamless clip ('scene-motion'): the left leaf, then the right 0.3 s later, swing out 95° about vertical hinge-pin axes, hold open, swing shut and hold closed. Each leaf node's origin is exactly on its hinge-pin axis (at the jamb, 35 mm proud of the wall face), so the leaves can be re-posed in an engine; portal, apron and lamps never move. The GLB's rest pose is the t = 0 frame, with the doors about 70° and 50° ajar. The GLB has 1,780 triangles in 23 meshes; every material is named exactly after a kit palette colour, so recolour by name. engineLivery (the kit's 'Engine livery') sets the depth of the white band across both leaves (0.12 m at 0 to 0.42 m at 1). Params are baked into the GLB at their defaults; they change geometry only when the scene is rebuilt in the viewer. The opening is see-through (no interior), so the piece can front an engine-bay building. glb-lint: 0 errors; its warnings are expected (non-indexed meshes from flat shading, sibling overlap from trim on the brick, repeated material names because each part carries its own per-colour mesh, scale vs a 1 m reference). plan-check rejects only the hyphenated library part ids (its regex allows no hyphen); the same plan with the slug de-hyphenated passes.

About the Bay doors 3D model

Bay doors is a free animated low-poly 3D model from the Fire Station set. It measures 4.9 m × 5.4 m × 2.4 m (W × H × D) at real-world scale and is built from 1,780 triangles across 23 meshes, with 6 named parts and a baked animation (8.0 s). Download the 156 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Bay doors 3D model free for commercial use?: Yes. It is free under the 1DesignTool 3D library license: use it in personal and commercial work — games, apps, websites, renders, ads and client projects — and modify it as you like, with no credit required. What you can't do is re-sell or re-distribute the file on its own or inside a model pack.
What file format is it, and how big is it?: A single binary glTF 2.0 file (.glb), 156 KB: 1,780 triangles, 5,340 vertices and 23 materials, modelled in metres at 4.9 m × 5.4 m × 2.4 m.
Is Bay doors animated?: Yes — the GLB carries a baked animation (8.0 s), ready to play with any glTF animation mixer.
Which engines and tools can open it?: Anything that reads glTF 2.0. three.js, React Three Fiber, Babylon.js, Godot 4 and Blender import the GLB directly; Unity and Unreal Engine load it through their glTF importers. The snippets above show the exact code for three.js, React Three Fiber, Godot and Blender.
How was the Bay doors 3D model made?: Claude Code (Claude Opus 5.5) generated it inside 1DesignTool's 3D template from a written brief, then the design kit's checks verified the geometry and the GLB before it was published. You can make your own the same way with 1DesignTool.