Nesting software built for laser cutting shops
Upload your DXF parts, set your sheet size and kerf, and get an optimized layout in seconds. Works for fiber, CO₂, and diode lasers — all in the browser.
Try free — no install
How Lapas helps your operation
Kerf compensation
Set exact kerf width for your laser. Lapas accounts for material removed by the beam when placing parts.
Complex shape support
Handles LWPOLYLINE, ARC, CIRCLE, SPLINE, ELLIPSE — the exact geometry types DXF files from CAD tools produce.
Minimal part spacing
Set minimum gap between parts to avoid heat distortion. Even 1mm of extra clearance per part costs material — optimize it.
Rotation control
Free rotation for maximum utilization, or lock to 0°/90°/180°/270° for parts where grain or edge direction matters.
Multi-sheet optimization
Nest across multiple sheets simultaneously. Prioritize leftover sheet sizes to reduce remnant waste.
Direct DXF export
Export the nested layout as a DXF file ready to open in your CAM software (LightBurn, RDWorks, LaserCut Pro, etc.).
Specifically built for this workflow
- Supports DXF files from LightBurn, RDWorks, LaserCAD, AutoCAD, Fusion 360, and all major laser CAM tools
- Kerf width setting ensures parts are spaced correctly even for thick materials
- Part-in-part nesting — places smaller shapes inside holes of larger parts when geometry allows
- Live preview shows each part placement as it happens — see the result build in real time
- PDF report includes sheet count, utilization %, and part placement list — useful for job quoting
- Works on any OS — Windows, macOS, Linux — via the browser. No plugin needed for LightBurn.
Upload a DXF.
See the difference.
Your first nesting job takes under 60 seconds. Try it and see how much you save.
Start free