wow, not a lot of sketchup users in here I guess!
I was able to get some accurate (yet 100ths of mm off) drawings out in 2D in dxf format and the tedious workflow (for those who have these apps and are struggling as well may benefit from) goes like this:
1. copy /paste the component you want to export in a new comp on the origin (for clarity during export)
2. Turn off Camera >Perspective
3. Turn on Camera > Parallel Projection
4. Face the object using Camera > Standard Views (will likely be Top or Right view depending on the orientation of your object).
5. Make sure your entire component is in the viewing window.
6. Choose File > Export > 2D Graphic (AutoCAD 2004 setting @ Full scale work alright for me).
Extra Steps that I did in Illustrator that probably could have been done in Sketchup
8. Create a comp that is your sheet size (1220 x 2440 for instance).
9. Open up your DFX files and paste them into your new comp, arranging them on the sheet as you see fit (aka how they will be cut), leaving tolerances for the cutting blade (I've been told 10mm is sufficient).
10. Make sure you join all your paths as they tend to be single lines when coming out of Sketchup, at least from illustrators perspective.
I'm SURE there must be a better workflow than this. Anyone?