A collection of tutorials that are related to the use of the CAD design program called FreeCad. It is an attempt to collect those tutorials that are most important to a train modler.
Video Presentation of Arch Workbench - Makes a small block building.
Build your model with a faster, mesh-based application such as Blender or SketchUp, and import them in FreeCAD in order to extract plans and section views. FreeCAD being made for precision modeling, at a much higher level than what we usually need in architectural modeling, building your models directly in FreeCAD can be heavy and slow. For this reason, such a workflow has big advantages. I described it in this article on my blog. If you care to model correctly and precisely (clean, solid, non-manifold meshes), this workflow gives you the same performance and precision level as the other.