SVG to G-Code for K40 CO2 Desktop Laser Cutter
Convert vector SVG graphics into clean cutting and scoring G-code for upgraded K40 CO2 laser cutters running GRBL or Smoothieware.
Drop SVG file here or click to browse
Processed in your browser · SVG/DXF up to 5 MB
Toolpath & Machine Settings
Match maximum S to your controller (GRBL $30). 100% power outputs that S value. M4 requires GRBL laser mode ($32=1).
SVG origin is the bottom-left of the viewport. Explicit mm/in dimensions take priority; DPI scales pixel dimensions.
Setup & Zeroing Instructions for K40 Laser
Align Water Cooling & Air Assist
Ensure water temperature is below 20°C and air assist pump is actively clearing the focal lens.
Set Bed Focus Height
Adjust your manual or motorized Z bed so the material surface is exactly 50.8mm (2 inches) from the focal lens.
Stream G-Code
Use LightBurn, LaserWeb, or Web-based gcode streaming to execute high-speed vector engraving.
Machine Troubleshooting & Calibration: K40 CO2 Desktop Laser Cutter
Does this G-code work on stock K40 nano boards?
Stock K40 machines with M2Nano boards require proprietary software (K40 Whisperer). This G-code is designed for K40 machines upgraded with GRBL, Cohesion3D, or Smoothieboard controllers.