About
Two 1.5 m pier walls with capping plates leave a central chase and carry trunnion bearings at 1.5 m. The deck is a 4 m by 4.2 m steel span on a torsion box with post and rail parapets and amber end bands; the counterweight box swings into the chase behind the pivot. Overall size 4.66 x 2.48 x 6.5 m in metres, +Y up, +Z forward, resting on y=0. Nodes leaf and counterweight share the trunnion axis at y=1.5, z=-0.3, parallel to X. Clips: open raises the leaf to 71 degrees over 2.6 s while the counterweight drops into the chase, close lowers it. Node TRS animation on named nodes only; no skinned rig, skeleton, 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 “Bascule bridge leaf with counterweight (Animated Mechanisms Kit)” asset in my project. Model: https://cdn.3dassets.dev/assets/24604/v1/model.glb Asset page: https://3dassets.dev/assets/animated-mechanisms-kit-bascule-deck-3be97e65 Description: Single leaf lifting bridge: a 4.2 m railed deck on trunnion bearings between two pier walls, with a concrete counterweight that swings down into the chase and an operator cabin. - Dimensions (X × Y × Z): 4.66 × 2.48 × 6.5 metres - Triangles: 468 - Animations: open, close - 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/24604/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
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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?
Bascule bridge leaf with counterweight (Animated Mechanisms Kit)
Single leaf lifting bridge: a 4.2 m railed deck on trunnion bearings between two pier walls, with a concrete counterweight that swings down into the chase and an operator cabin.
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