The box to save your file to your computer will pop up (I use Windows, it may differ with other systems) - where it says "Save as Type" click on the arrow to get the drop down menu and choose Desktop Cutting Plotter (.dxf) and click SAVE.
Once the file is open, make sure it is selected (bounding box with little arrows pointing inward) and then go to FILE > SAVE AS. Next, open Inkscape, and go to FILE > IMPORT. Ok - so you have your SVG file and you have Inkscape. Inkscape is free, and often used instead of Adobe Illustrator to edit vector files. You can easily convert an SVG to a DXF for free with Inkscape.
If you have more objects (lines, circles, …) to embed in your G-Code, you have to mark them all. The bottom left corner is the 0,0 location of your machine. You will find the plugin at Extensions Generate G-Code for Repetier Repetier Laser Tool…. After starting Inkscape, the plugin is installed. Then download our Repetier G-Code Plugin for Inkscape ( up to version 0.91, as of version 0.92) and copy the content to inkscape\share\extensions. In this tutorial you will see how to convert the contours of text and images in Inkscape to G-Code to use it with Repetier-Firmware for CNC laser engraver.