920 tris1.00 × 1.21 × 0.42 m
Use it in code
Remix in the editorsaw-blade.js · 243 lines
Self-contained ES module — only depends on three. Call the factory and add the group to your scene.
/**
* Saw Blade — Codels 3D model library
* License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
* Triangles: 920 · Size (W × H × D): 1.00 × 1.21 × 0.42 m
*
* Usage:
* import { createSawBlade } from './saw-blade.js';
*
* const model = createSawBlade();
* model.position.set(0, 0, 0);
* scene.add(model);
*
* // Animations: idle
* const mixer = new THREE.AnimationMixer(model);
* mixer.clipAction(THREE.AnimationClip.findByName(model.animations, 'idle')).play();
* // in your render loop: mixer.update(clock.getDelta());
*/
import * as THREE from 'three';
const deg = THREE.MathUtils.degToRad;
// Extrude a 2D outline along Z (centered). bevel = [thickness, size, segments].
function extrude(outline, depth, holes = [], bevel = null) {
const shape = new THREE.Shape(outline.map(([x, y]) => new THREE.Vector2(x, y)));
for (const hole of holes) shape.holes.push(new THREE.Path(hole.map(([x, y]) => new THREE.Vector2(x, y))));
const options = bevel
? { depth, bevelEnabled: true, bevelThickness: bevel[0], bevelSize: bevel[1], bevelSegments: bevel[2] }
: { depth, bevelEnabled: false };
return new THREE.ExtrudeGeometry(shape, options).translate(0, 0, -depth / 2);
}
// Build animation clips from simple descriptions (Codels). Play them with THREE.AnimationMixer.
function codelsClips(THREE, entries) {
var TAU = Math.PI * 2;
var DEG = Math.PI / 180;
var AX = { x: new THREE.Vector3(1, 0, 0), y: new THREE.Vector3(0, 1, 0), z: new THREE.Vector3(0, 0, 1) };
var periodOf = function (a) { return a.type === 'spin' ? 360 / Math.abs(a.speed) : a.period; };
var clips = [];
// loops → 'idle'
var loops = [];
entries.forEach(function (e) {
var l = e.anim.filter(function (a) { return a.type !== 'hinge'; });
if (l.length) loops.push({ target: e.target, anim: l });
});
if (loops.length) {
var periods = [];
loops.forEach(function (e) { e.anim.forEach(function (a) { periods.push(periodOf(a)); }); });
var longest = Math.max.apply(null, periods);
var D = longest;
var bestErr = Infinity;
for (var m = 1; m <= 6 && bestErr > 0.01; m++) {
var err = 0;
periods.forEach(function (p) {
var n = Math.max(1, Math.round((longest * m) / p));
err = Math.max(err, Math.abs((longest * m) / n - p) / p);
});
if (err < bestErr - 1e-9) { bestErr = err; D = longest * m; }
}
var cycles = function (a) { return Math.max(1, Math.round(D / periodOf(a))); };
var steps = 24;
loops.forEach(function (e) { e.anim.forEach(function (a) { steps = Math.max(steps, cycles(a) * 24); }); });
steps = Math.min(steps, 720);
var tracks = [];
loops.forEach(function (e) {
var o = e.target;
var q0 = o.quaternion.clone(), p0 = o.position.clone(), s0 = o.scale.clone();
var q = new THREE.Quaternion(), turn = new THREE.Quaternion(), p = new THREE.Vector3(), s = new THREE.Vector3();
var has = function (type) { return e.anim.some(function (a) { return a.type === type; }); };
var turns = has('spin') || has('swing'), moves = has('bob'), grows = has('pulse');
var times = [], qv = [], pv = [], sv = [];
for (var k = 0; k <= steps; k++) {
var t = (D * k) / steps;
q.copy(q0); p.copy(p0); s.copy(s0);
e.anim.forEach(function (a) {
var n = cycles(a);
var w = Math.sin(TAU * ((n * t) / D + (a.phase || 0)));
if (a.type === 'spin') q.multiply(turn.setFromAxisAngle(AX[a.axis], (a.speed < 0 ? -TAU : TAU) * ((n * t) / D)));
else if (a.type === 'swing') q.multiply(turn.setFromAxisAngle(AX[a.axis], a.angle * DEG * w));
else if (a.type === 'bob') p.addScaledVector(AX[a.axis], a.distance * w);
else if (a.type === 'pulse') s.multiplyScalar(1 + a.amount * w);
});
times.push(t);
if (turns) qv.push(q.x, q.y, q.z, q.w);
if (moves) pv.push(p.x, p.y, p.z);
if (grows) sv.push(s.x, s.y, s.z);
}
if (turns) tracks.push(new THREE.QuaternionKeyframeTrack(o.uuid + '.quaternion', times, qv));
if (moves) tracks.push(new THREE.VectorKeyframeTrack(o.uuid + '.position', times, pv));
if (grows) tracks.push(new THREE.VectorKeyframeTrack(o.uuid + '.scale', times, sv));
});
clips.push(new THREE.AnimationClip('idle', D, tracks));
}
// hinge moves → one-shot clips ('open' …)
var shots = {};
entries.forEach(function (e) {
e.anim.forEach(function (a) {
if (a.type !== 'hinge') return;
var name = a.clip || 'open';
(shots[name] = shots[name] || []).push({ target: e.target, a: a });
});
});
Object.keys(shots).forEach(function (name) {
var tracks = [];
var length = 0;
shots[name].forEach(function (h) {
var o = h.target, q0 = o.quaternion.clone(), q = new THREE.Quaternion(), turn = new THREE.Quaternion();
var n = Math.max(4, Math.ceil(Math.abs(h.a.angle) / 10));
var times = [], qv = [];
for (var k = 0; k <= n; k++) {
var f = k / n;
var eased = f * f * (3 - 2 * f);
q.copy(q0).multiply(turn.setFromAxisAngle(AX[h.a.axis], h.a.angle * DEG * eased));
times.push(h.a.duration * f);
qv.push(q.x, q.y, q.z, q.w);
}
length = Math.max(length, h.a.duration);
tracks.push(new THREE.QuaternionKeyframeTrack(o.uuid + '.quaternion', times, qv));
});
clips.push(new THREE.AnimationClip(name, length, tracks));
});
return clips;
}
export function createSawBlade() {
const root = new THREE.Group();
root.name = 'SawBlade';
// Materials
const bladeMat = new THREE.MeshStandardMaterial({ name: 'blade', color: 0xd4d9e1, roughness: 0.22, metalness: 0.85, flatShading: true });
const hubMat = new THREE.MeshStandardMaterial({ name: 'hub', color: 0xe0442f, roughness: 0.45, metalness: 0.2, flatShading: true });
const boltMat = new THREE.MeshStandardMaterial({ name: 'bolt', color: 0x2a2d33, roughness: 0.5, metalness: 0.5, flatShading: true });
const frameMat = new THREE.MeshStandardMaterial({ name: 'frame', color: 0x454c59, roughness: 0.6, metalness: 0.35, flatShading: true });
const hazardMat = new THREE.MeshStandardMaterial({ name: 'hazard', color: 0xf2c12e, roughness: 0.6, flatShading: true });
const stripeMat = new THREE.MeshStandardMaterial({ name: 'stripe', color: 0x1f2128, roughness: 0.7, flatShading: true });
// Shared geometries
const boxGeo = new THREE.BoxGeometry(0.075, 0.044, 0.008);
const cylinderGeo = new THREE.CylinderGeometry(0.11, 0.11, 0.035, 12);
const cylinderGeo2 = new THREE.CylinderGeometry(0.0132, 0.0132, 0.0175, 6);
// Parts
const base = new THREE.Mesh(new THREE.BoxGeometry(0.9, 0.12, 0.4), frameMat);
base.name = 'base';
base.position.set(0, 0.06, -0.0387);
root.add(base);
const baseTrim = new THREE.Mesh(new THREE.BoxGeometry(0.92, 0.042, 0.42), hazardMat);
baseTrim.name = 'baseTrim';
baseTrim.position.set(0, 0.021, -0.0387);
root.add(baseTrim);
const box3 = new THREE.Mesh(boxGeo, stripeMat);
box3.position.set(-0.375, 0.022, 0.1713);
root.add(box3);
const box4 = new THREE.Mesh(boxGeo, stripeMat);
box4.position.set(-0.225, 0.022, 0.1713);
root.add(box4);
const box5 = new THREE.Mesh(boxGeo, stripeMat);
box5.position.set(-0.075, 0.022, 0.1713);
root.add(box5);
const box6 = new THREE.Mesh(boxGeo, stripeMat);
box6.position.set(0.075, 0.022, 0.1713);
root.add(box6);
const box7 = new THREE.Mesh(boxGeo, stripeMat);
box7.position.set(0.225, 0.022, 0.1713);
root.add(box7);
const box8 = new THREE.Mesh(boxGeo, stripeMat);
box8.position.set(0.375, 0.022, 0.1713);
root.add(box8);
const arm = new THREE.Mesh(extrude([[-0.11, 0.11], [0.11, 0.11], [0.06, 0.71], [-0.06, 0.71]], 0.05), frameMat);
arm.name = 'arm';
arm.position.set(0, 0, -0.1025);
root.add(arm);
const armHead = new THREE.Mesh(new THREE.CylinderGeometry(0.065, 0.065, 0.05, 10), frameMat);
armHead.name = 'armHead';
armHead.position.set(0, 0.71, -0.1025);
armHead.rotation.set(deg(90), 0, 0);
root.add(armHead);
const axle = new THREE.Mesh(new THREE.CylinderGeometry(0.025, 0.025, 0.1025, 8), boltMat);
axle.name = 'axle';
axle.position.set(0, 0.71, -0.0387);
axle.rotation.set(deg(90), 0, 0);
root.add(axle);
const sawBlade = new THREE.Group();
sawBlade.name = 'sawBlade';
sawBlade.position.set(0, 0.71, 0);
sawBlade.rotation.set(0, 0, deg(8));
root.add(sawBlade);
const blade = new THREE.Mesh(extrude([[0.42, 0], [0.4555, 0.0885], [0.4776, 0.1479], [0.3947, 0.1436], [0.3977, 0.239], [0.3983, 0.3023], [0.3217, 0.27], [0.292, 0.3606], [0.2709, 0.4203], [0.21, 0.3637], [0.1511, 0.4387], [0.1108, 0.4876], [0.0729, 0.4136], [-0.0081, 0.4639], [-0.0627, 0.4961], [-0.0729, 0.4136], [-0.1663, 0.4332], [-0.2285, 0.4447], [-0.21, 0.3637], [-0.3044, 0.3502], [-0.3669, 0.3397], [-0.3217, 0.27], [-0.4058, 0.225], [-0.4609, 0.1938], [-0.3947, 0.1436], [-0.4583, 0.0726], [-0.4994, 0.0244], [-0.42, 0], [-0.4555, -0.0885], [-0.4776, -0.1479], [-0.3947, -0.1436], [-0.3977, -0.239], [-0.3983, -0.3023], [-0.3217, -0.27], [-0.292, -0.3606], [-0.2709, -0.4203], [-0.21, -0.3637], [-0.1511, -0.4387], [-0.1108, -0.4876], [-0.0729, -0.4136], [0.0081, -0.4639], [0.0627, -0.4961], [0.0729, -0.4136], [0.1663, -0.4332], [0.2285, -0.4447], [0.21, -0.3637], [0.3044, -0.3502], [0.3669, -0.3397], [0.3217, -0.27], [0.4058, -0.225], [0.4609, -0.1938], [0.3947, -0.1436], [0.4583, -0.0726], [0.4994, -0.0244]], 0.025, [[[0.2488, 0.1838], [0.2364, 0.2221], [0.2039, 0.2457], [0.1638, 0.2457], [0.1313, 0.2221], [0.1188, 0.1838], [0.1313, 0.1456], [0.1638, 0.122], [0.2039, 0.122], [0.2364, 0.1456]], [[-0.1188, 0.1838], [-0.1313, 0.2221], [-0.1638, 0.2457], [-0.2039, 0.2457], [-0.2364, 0.2221], [-0.2488, 0.1838], [-0.2364, 0.1456], [-0.2039, 0.122], [-0.1638, 0.122], [-0.1313, 0.1456]], [[-0.1188, -0.1838], [-0.1313, -0.1456], [-0.1638, -0.122], [-0.2039, -0.122], [-0.2364, -0.1456], [-0.2488, -0.1838], [-0.2364, -0.2221], [-0.2039, -0.2457], [-0.1638, -0.2457], [-0.1313, -0.2221]], [[0.2488, -0.1838], [0.2364, -0.1456], [0.2039, -0.122], [0.1638, -0.122], [0.1313, -0.1456], [0.1188, -0.1838], [0.1313, -0.2221], [0.1638, -0.2457], [0.2039, -0.2457], [0.2364, -0.2221]], [[0.315, 0], [0.3025, 0.0217], [0.2775, 0.0217], [0.265, 0], [0.2775, -0.0217], [0.3025, -0.0217]], [[0.025, 0.29], [0.0125, 0.3117], [-0.0125, 0.3117], [-0.025, 0.29], [-0.0125, 0.2683], [0.0125, 0.2683]], [[-0.265, 0], [-0.2775, 0.0217], [-0.3025, 0.0217], [-0.315, 0], [-0.3025, -0.0217], [-0.2775, -0.0217]], [[0.025, -0.29], [0.0125, -0.2683], [-0.0125, -0.2683], [-0.025, -0.29], [-0.0125, -0.3117], [0.0125, -0.3117]]]), bladeMat);
blade.name = 'blade';
sawBlade.add(blade);
const hubFront = new THREE.Mesh(cylinderGeo, hubMat);
hubFront.name = 'hubFront';
hubFront.position.set(0, 0, 0.028);
hubFront.rotation.set(deg(90), 0, 0);
sawBlade.add(hubFront);
const hubBack = new THREE.Mesh(cylinderGeo, hubMat);
hubBack.name = 'hubBack';
hubBack.position.set(0, 0, -0.028);
hubBack.rotation.set(deg(90), 0, 0);
sawBlade.add(hubBack);
const axleCap = new THREE.Mesh(new THREE.CylinderGeometry(0.0385, 0.0385, 0.028, 6), boltMat);
axleCap.name = 'axleCap';
axleCap.position.set(0, 0, 0.058);
axleCap.rotation.set(deg(90), 0, 0);
sawBlade.add(axleCap);
const cylinder17 = new THREE.Mesh(cylinderGeo2, boltMat);
cylinder17.position.set(0.0726, 0, 0.0528);
cylinder17.rotation.set(deg(90), 0, 0);
sawBlade.add(cylinder17);
const cylinder18 = new THREE.Mesh(cylinderGeo2, boltMat);
cylinder18.position.set(0.0224, 0.069, 0.0528);
cylinder18.rotation.set(deg(90), 0, 0);
sawBlade.add(cylinder18);
const cylinder19 = new THREE.Mesh(cylinderGeo2, boltMat);
cylinder19.position.set(-0.0587, 0.0427, 0.0528);
cylinder19.rotation.set(deg(90), 0, 0);
sawBlade.add(cylinder19);
const cylinder20 = new THREE.Mesh(cylinderGeo2, boltMat);
cylinder20.position.set(-0.0587, -0.0427, 0.0528);
cylinder20.rotation.set(deg(90), 0, 0);
sawBlade.add(cylinder20);
const cylinder21 = new THREE.Mesh(cylinderGeo2, boltMat);
cylinder21.position.set(0.0224, -0.069, 0.0528);
cylinder21.rotation.set(deg(90), 0, 0);
sawBlade.add(cylinder21);
// Animations ('idle') — play them with THREE.AnimationMixer
root.animations = codelsClips(THREE, [
{ target: sawBlade, anim: [{ type: 'spin', axis: 'z', speed: 720 }] },
]);
root.traverse((o) => {
if (o.isMesh) {
o.castShadow = true;
o.receiveShadow = true;
}
});
return root;
}
export default createSawBlade;
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