ExplodeView v1.0.16

Turn any CAD assembly into an interactive 3D product showcase. 399 components. 40+ analysis tools. AI-powered.

ExplodeView is a browser-based 3D viewer for STEP, STL, and other CAD files. Embed it on your product page, use it as a service tech tool, or integrate it into your manufacturing platform. Built with Three.js r170, AI-powered part identification, and manufacturing-grade tools.

Key Features at a Glance

• 399-component assemblies rendered in WebGL with exploded-view animations
• 40+ analysis tools — measurement, QR codes, BOM export, section cuts, part identification
• AI-powered — Gemini Vision API, Groq Llama 3.1 8B, offline NLP fallback
• McMaster-Carr integration — auto-search fasteners with torque specs
• 6 languages — English, German, French, Spanish, Italian, Dutch
• Docker-ready — 3-service stack with STEP converter backend
• 100+ automated tests — visual test agent with live Chrome visualization
• Zero dependencies — everything runs in the browser (or Docker)

Quick Start

Try it Live

https://explodeview.com/demo

npm Install

npm install explodeview

CDN Embed

<div id="viewer" style="width:100%; height:600px"></div>
<script src="https://unpkg.com/explodeview@1.0.16/dist/explodeview.js"></script>
<script>
  new ExplodeView({
    container: '#viewer',
    modelUrl: '/your-assembly.step',
    theme: 'dark'
  });
</script>

Docker (with server-side STEP converter)

docker-compose up
# ExplodeView: http://localhost:8080
# STEP Converter: http://localhost:8787
# cycleCAD (sister app): http://localhost:3000

Installation

npm

npm install explodeview

CDN

<script src="https://unpkg.com/explodeview"></script>

Self-hosted

Download dist/explodeview.js and serve it from your own server.

Processing STEP Files

The CLI tool converts STEP/STP files into web-ready assets:

python3 bin/explodeview-process.py <input.step> <output_dir> [options]

Options:
  --name        Product display name
  --brand       Brand name
  --tolerance   Mesh quality (default: 0.5, lower = finer)

Requirements: Python 3.8+ with cadquery and OCP packages.

pip install cadquery OCP

Output structure:

output/
├── parts/           # Individual STL meshes per solid
├── manifest.json    # Part metadata (centers, bounding boxes)
├── assemblies.json  # Auto-detected assembly grouping
└── config.json      # Viewer configuration

JavaScript API

// Programmatic initialization
const viewer = await STPViewer.init({
  container: '#my-viewer',
  src: '/path/to/processed/assets/',
  brand: 'Your Brand',
  productName: 'Product Name',
  assemblies: [],  // auto-loaded from assemblies.json
  captions: {
    brand: 'Your Brand',
    productName: 'Product Name',
    loaderTitle: 'Loading...',
    loaderText: 'Preparing 3D model...',
    btnOverview: 'Overview',
    btnCollapse: 'Collapse',
    btnExplode: 'Explode',
  }
});

Custom Assemblies

Override auto-detected assemblies with your own grouping:

STPViewer.init({
  container: '#viewer',
  src: '/assets/',
  assemblies: [
    {
      key: 'frame',
      name: 'MAIN FRAME',
      subtitle: 'Structural Steel',
      detail: 'Load-bearing frame assembly.',
      color: '#0055A4',
      indices: [0, 150],  // solid index range
    },
    {
      key: 'motor',
      name: 'DRIVE UNIT',
      subtitle: 'Electric Motor Assembly',
      color: '#FFD100',
      indices: [150, 200],
    }
  ]
});

Custom Materials

Each assembly can have custom material properties in the assemblies JSON:

{
  "key": "covers",
  "name": "PROTECTIVE COVERS",
  "color": "#2A2A30",
  "material": {
    "metalness": 0.0,
    "roughness": 0.85
  }
}

Features (63 Total)

Core Visualization

• ✅ 3D exploded-view with timeline scrubber
• ✅ Assembly tree with part highlighting
• ✅ 399-component assemblies (real-world tested)
• ✅ Collapse/expand animations
• ✅ OrbitControls (rotate, pan, zoom)
• ✅ 6 preset views (front, back, top, bottom, left, right)
• ✅ Wireframe + grid + shadow rendering
• ✅ Fit-to-selection (double-click zoom)
• ✅ Realistic 150+ PBR materials

Manufacturing Tools (40+)

• ✅ Measurement — 2-point distance, 3-point angle
• ✅ QR codes — per-part deep links
• ✅ Bill of Materials — CSV export with quantities
• ✅ Part identification — AI + geometry fallback
• ✅ Section cuts — X/Y/Z cross-sections
• ✅ STL export — individual parts or assembly
• ✅ Annotation pins — drag & drop comments
• ✅ DIN/ISO lookup — standard parts with McMaster-Carr links
• ✅ Assembly instructions — step-by-step HTML export
• ✅ Weight estimator — 15 materials, volume-based
• ✅ Part comparison — select 2 parts, compare dimensions
• ✅ Maintenance heatmap — color-code by urgency
• ✅ Wear timeline — 5-year replacement schedule
• ✅ Clearance checker — detect interference
• ✅ Assembly validator — score A-F
• ✅ Thermal heatmap — simulated heat distribution
• ✅ Vibration analysis — animated vibration
• ✅ Fastener wizard — 12 fastener patterns, torque specs

AI-Powered (v1.0.16 New)

• ✅ AI Vision Part Identifier — Gemini Vision API
• ✅ Batch AI Scan — auto-scan all parts
• ✅ Smart BOM — AI-identified parts with pricing
• ✅ AI Assembly Instructions — auto-generated service manuals
• ✅ Chatbot — Gemini Flash + Groq Llama 3.1 + offline fallback
• ✅ Design Review — manufacturability analysis

Export & Sharing

• ✅ STL export (ASCII + binary)
• ✅ OBJ, glTF 2.0, PLY export
• ✅ PNG screenshot (2x retina)
• ✅ GIF export (animated interactions)
• ✅ Service report (technician workflows)
• ✅ Technical report (full HTML)
• ✅ Embed code generator
• ✅ Shareable links

Customization

• ✅ Dark & light themes
• ✅ Blueprint theme (white bg + blue wireframe)
• ✅ 6 languages (EN, DE, FR, ES, IT, NL)
• ✅ Custom color schemes
• ✅ Material selector (8 PBR materials)
• ✅ Transparency control (per-part opacity)
• ✅ Color-by-type (auto-coding)
• ✅ Hero shots (pre-configured camera positions)

Integration & Performance

• ✅ npm package (npm install explodeview)
• ✅ CDN embed (<script> tag)
• ✅ Docker support (3-service stack)
• ✅ Server-side STEP converter (FastAPI)
• ✅ Agent API (programmatic control)
• ✅ WebWorker support (non-blocking parsing)
• ✅ Service Worker (offline mode)
• ✅ COOP/COEP headers (SharedArrayBuffer)
• ✅ 100+ automated tests (visual test agent)
• ✅ Performance monitor (FPS, memory, part count)

Who is this for?

• Manufacturing companies — showcase products on your website
• E-commerce — interactive product pages that convert
• Engineering docs — maintenance and assembly manuals
• Sales teams — impressive presentations and proposals
• Education — teach mechanical engineering concepts

Examples

Full-page viewer

<div id="viewer"
     data-stp-viewer="/assets/"
     data-brand="cycleWASH"
     data-product-name="Station Basic"
     style="width:100vw; height:100vh">
</div>
<script src="https://unpkg.com/explodeview"></script>

Embedded in a product page

<div class="product-3d"
     data-stp-viewer="/assets/my-machine/"
     data-brand="ACME Corp"
     data-product-name="Widget Pro 3000"
     style="width:100%; height:500px; border-radius:12px; overflow:hidden">
</div>
<script src="https://unpkg.com/explodeview"></script>

Browser Support

Chrome 90+, Firefox 90+, Safari 15+, Edge 90+

Contributing

PRs welcome! See CONTRIBUTING.md.

License

MIT — free for personal and commercial use.

Built by Sachin Kumar — creator of cycleWASH, the world's first automated bicycle washing station.