Browser-based 3D model slicing tool for print preparation. Prototype / research.
Cuttable.Banner.mp4
Live Preview · Project Page · Rendy Rayana
Cuttable3D is a browser-based tool for slicing STL models into separate parts in preparation for 3D printing. It lets you draw a cut line directly on the model, inspect the resulting pieces with real rigid-body physics, add snap-fit peg joints at cut faces, and verify that all parts reassemble correctly using an interactive puzzle mode. Built as a prototype to explore geometry processing and physics-based interaction in the browser.
- Freehand straight-line cuts with automatic plane detection
- Snap-fit peg joints generated at cut faces
- Real rigid-body physics: pieces fall, bounce, and can be picked up and thrown
- Puzzle mode: ghost outlines mark each piece's original position; drag to snap back
- Scroll to rotate pieces while dragging in puzzle mode (Y axis; Cmd+Scroll for X)
- Isolation mode with transform gizmo for precise repositioning
- Unlimited undo / redo
Most browser-based 3D tools treat geometry statically. Cuttable3D combines CSG boolean operations with a live physics simulation, so cut results are immediately interactive rather than just visual. The puzzle mode provides a lightweight way to verify that a multi-part split will reassemble correctly before sending to a printer, without leaving the browser.
- Node.js 18+
- Modern browser with WebAssembly support (Chrome, Firefox, Safari)
git clone https://github.com/rendyrayana/Cuttable3D
cd Cuttable3D
npm install
npm run devOpen http://localhost:5173. A sample model loads automatically.
| Library / Tool | Role |
|---|---|
| Three.js v0.179 | 3D rendering and post-processing |
| Rapier 3D | WASM rigid-body physics simulation |
| three-bvh-csg | Mesh boolean operations for cuts |
| manifold-3d | Manifold geometry for cut cap faces |
| Vite | Dev server and build tooling |
Prototype. Built as part of ongoing exploration into browser-based geometry tools. Not production-ready. Feedback and issues welcome.
- Live Preview: rendyrayana.github.io/cuttable3d
- Project Page: rendyrayana.my.id/cuttable3d
- More projects: rendyrayana.my.id