- Export your model to STL file (Install the Sketchup STL extension: https://extensions.sketchup.com/en/content/sketchup-stl)
- Import the STL file in a new TinkerCAD model: https://www.tinkercad.com
- Export the TinkerCAD model to 2D SVG graphic
- Open the SVG file in Inkscape
- Make sure you page is correctly set up and print to the desired scale
The End