This miniature assembly was created using 32 bit Windows 7 FreeCAD V0.13 Rev 1828 as a study in modeling linkages and tubing in 3D space using the Part Design workbench. The global axis was located at the point of symmetry so that maximum use of Part mirroring about the Z axis was possible as shown in the second screenshot. All parts were created in the same file and grouped by part name. Fasteners are generally not included in order to keep the file smaller to maximize performance during modeling.
Dimensioned drawings used to create the parametric solids can be found here:
http://www.john-tom.com/html/SteamPlans.html
The FreeCAD assembly file (4.08 Mb) is at:
https://www.dropbox.com/s/fsn8kecvxn60r ... nder.FCStd