The XYZ ONESEATER is a trike bicycle which frame and stearing components are mainly build out of 25mm square aluminium tubing.
A Github repository is set up providing the sources of the project as FreeCad-files (.FCStd) as well as the resulting technical drawings summarized in a pdf-document (https://github.com/FreeCutter/XYZ_ONESEATER).
The original construction drawings for the XYZ ONESEATER might be downloaded here http://www.n55.dk/MANUALS/SPACEFRAMEVEH ... icles.html. Credits to www.N55.dk and collaborator Till Wolfer.
Starting point of the repository was to get the original construction drawings transformed to FreeCAD. This transformation procedure is based on the structure of the original construction plan, i.e. each single component is generated in FreeCAD. Subsequently the needed components are used in assembleys like frame and steering bridge resulting in the final vehicle.
As square aluminium tubing is the main material for the ONESEATER the setup of the FreeCAD files starts most often with the characteristic cross-section of the component (e.g. 25x25x2mm square tubing). The Sketcher workbench inside the PartDesign workbench is used to draw the cross-section. The cross-section is subsequently extruded to a solid. Boreholes are drilled to the solid by using the Pocket tool of the PartDesign workbench.
Final assembly of appropriate components e.g. to a frame or steering sub-assembly could be done by using the A2plus workbench. This is done mainly by adding circularEdge constraints between several components to get to sub-assembly as well as constraints between several sub-assembly to get to a final assembly respectively.
Screws, nuts and washers might be added in sub-assembly or final assembly by using the Fasteners workbench.
Technical drawings of components or any assembly could be easily generated by using the TechDraw workbench where the Spreadsheet workbench had been used for documentation text as well as BOM - bill of material.
FreeCad had been used in the version of:
OS: Linux Mint 19
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Build type: Release
Python version: 3.6.8
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
However, deviating therefrom FreeCad 0.19 DailyBuild had been used to generate "ballon" annotations in some overview drawings.