How to Convert SVG to DXF
Export SVG files to DXF format for CNC routers, laser engravers, and CAD applications — free and paid methods.
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Why DXF for CNC and Laser Cutting
DXF (Drawing Exchange Format) is the standard for CAD/CAM workflows. CNC routers, vinyl cutters, and professional laser cutting software (AutoCAD, Fusion 360, etc.) work natively with DXF. SVG is common for hobbyist machines (Cricut, Silhouette, LightBurn); DXF is standard for production equipment.
Method 1: Inkscape (Free, Recommended)
Inkscape has built-in DXF export. Open your SVG, then use File > Save As and choose 'Desktop Cutting Plotter' (DXF R14 compatible).
- File > Save a Copy (Shift+Ctrl+Alt+S)
- Format: 'Desktop Cutting Plotter (R14) (*.dxf)'
- Or: Extensions > Render > DXF Output for more options
- Units: set to millimeters to match physical dimensions
- Limitations: Inkscape DXF export converts curves to line segments (polylines)
Method 2: Adobe Illustrator
File > Export > Export As > DXF/DWG. Illustrator produces better curve support (true Bezier in DXF R2000+) than Inkscape.
- File > Export > Export As
- Format: AutoCAD Interchange File (DXF)
- Version: AutoCAD 2018 DXF for modern software
- Export As Curves: keep this checked for accurate paths
- Check 'Include ACAD 2000 Compatible Fills' if fills are needed
Method 3: Online SVG to DXF Converters
CloudConvert, Convertio, and VectorMagic offer online SVG-to-DXF conversion. Quality varies — test the output in your CAM software before production.
- cloudconvert.com/svg-to-dxf — reliable quality
- convertio.co — quick for simple files
- Always validate the DXF in your CNC/CAD software after conversion
- Check that curves are accurate and dimensions match originals
Frequently Asked Questions
Does SVG to DXF preserve curves accurately?
Inkscape converts curves to polylines (approximated as straight line segments). Illustrator preserves true NURBS/Bezier curves in DXF R2000+. For CNC machining, Illustrator's output is more accurate.
What DXF version should I use for laser cutting?
DXF R14 or DXF 2000 are most compatible. LightBurn accepts DXF R14+. AutoCAD-based CAM software prefers DXF 2000 or 2010. Check your machine's software documentation.
How do I convert SVG to DXF for Fusion 360?
Use Inkscape: save as DXF R14. Import into Fusion 360 via Insert > Insert DXF. The sketch appears in your workspace for extrusion or CNC toolpath generation.
Why does my DXF look wrong after SVG conversion?
Common issues: incorrect units (check mm vs inches), polyline approximation of curves, or missing scale factor. Always set units explicitly in Inkscape before exporting.
Can I convert SVG to DXF without losing layers?
DXF supports layers. Inkscape's Extensions > Render > DXF Output plugin preserves Inkscape layers as DXF layers. Adobe Illustrator preserves Illustrator layers as DXF layers.
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