About
The inner defence of a gate passage: two dressed piers, a lintel, a slotted iron grille of six spiked bars on three cross straps, and a squared oak winch drum on iron brackets above the arch. The grille lifts clear of the passage and the drum turns with it. The winch rope and its chains are a linkage no rigid node transform can carry, so they are not modelled. Dimensions 3.74 × 5.44 × 1.74 m (X × Y × Z). Ground-contact origin under the footprint. Metre units, +Y up, +Z forward. Kingdom limestone, ashlar, timber, oak, iron, cloth, slate and straw, the palette shared with the castle construction and faction building packs. Rigid node-transform clips open, close, spin turn named parts on their own pivots. No skinning, no skeleton, no collision or navigation data.
Use with an AI agent
Copy this prompt into your AI chat, then describe what you want to build with the asset.
Use the “Winched Portcullis (Medieval Siege and Castle Defence)” asset in my project. Model: https://cdn.3dassets.dev/assets/28839/v1/model.glb Asset page: https://3dassets.dev/assets/medieval-siege-and-castle-defence-portcullis-winched-5029dd0e Description: Stone gate frame with a spiked iron portcullis that lifts 2.5 m in its slots, over a squared winch drum on brackets. - Dimensions (X × Y × Z): 3.74 × 5.44 × 1.74 metres - Triangles: 428 - Animations: open, close, spin - Licence: CC0 1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/) - Loading: Three.js GLTFLoader; no additional decoders required.
Also available as JSON, Markdown, or via the MCP server.
Import manually
Choose your framework, then copy the code into your project to load the asset.
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'
import { AnimationMixer } from 'three'
let mixer
const loader = new GLTFLoader()
loader.load('https://cdn.3dassets.dev/assets/28839/v1/model.glb', (gltf) => {
scene.add(gltf.scene)
mixer = new AnimationMixer(gltf.scene)
mixer.clipAction(gltf.animations[0]).play()
})
// Call from your render loop; deltaSeconds is time since the previous frame.
function updateAssetAnimation(deltaSeconds) {
mixer?.update(deltaSeconds)
}Common questions
How do I use this model with my AI development tools?
How do I get started?
Which game engines and tools can I use this model with?
How do I import this model into Unity, Godot, Unreal or Blender?
Can I use this model in a commercial game, and do I need to credit anyone?
Can I load it from the CDN instead of downloading it?
Do I need Draco, Meshopt or KTX2 to load it?
Winched Portcullis (Medieval Siege and Castle Defence)
Stone gate frame with a spiked iron portcullis that lifts 2.5 m in its slots, over a squared winch drum on brackets.
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