To create 2D drawings (which you can export as DWG or DXF) from 3D bodies, you can project the edges of your bodies to any plane.
How it works
1. Create construction planes.
You will project your edges to these planes
2. Use Project tool to project the necessary edges to the plane
This will guarantee it will show up on your drawings after the export
4. Export in DWG / DXF - use the various settings to customize your export