About
A 1.1 m by 2.6 m bedplate carries a crank bearing housing, a 0.24 m throw crank, a connecting rod, a crosshead running between two guide bars and a cylinder block with a bolted end cover. All motion is in the ZY plane. Overall size 1.1 x 1.67 x 2.85 m in metres, +Y up, +Z forward, resting on y=0. Node crank turns on the crank axis at y=1.32, z=0.15; node crosshead slides along Z; node rod pivots on the crosshead pin and slides with it, so the big end tracks the crank pin exactly. Clips: idle turns the crank one full revolution over 2.4 s, driving the rod and crosshead through an exact crank and slider cycle. 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 “Crank, rod and piston assembly (Animated Mechanisms Kit)” asset in my project. Model: https://cdn.3dassets.dev/assets/24612/v1/model.glb Asset page: https://3dassets.dev/assets/animated-mechanisms-kit-piston-assembly-09a1b210 Description: Open crank and slider mechanism on a painted bedplate: a bearing housing, a crank with a web and pin, a connecting rod, a crosshead on guide bars and a lathed cylinder block. - Dimensions (X × Y × Z): 1.1 × 1.67 × 2.85 metres - Triangles: 620 - Animations: idle - 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/24612/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?
Crank, rod and piston assembly (Animated Mechanisms Kit)
Open crank and slider mechanism on a painted bedplate: a bearing housing, a crank with a web and pin, a connecting rod, a crosshead on guide bars and a lathed cylinder block.
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