Since they give something very similar to blue-prints, can it be considered open source? Certainly no free (as in speech) because they say nothing about licensing.
Also, given I have dimensions and diagrams, how is called the type of service which builds it "from source"?
There's plenty of companies that will lasercut metal from a AI/SVG/DXF file. In the US, there's https://www.ponoko.com/
Any major city will have someone who can do this, though their website and pricing will probably be worse. Searching "laser cutting" in google maps gives eight different places in the Seattle metro area.
Also, given I have dimensions and diagrams, how is called the type of service which builds it "from source"?