Want ot obtain a CAD drawing of the PCB
What do you need exactly? The outline? a 3D model?
The physical 2D view of the PCB oi that I can design or in ACAD, (eventually Fritzing, or TinkerCAD – but then I have to follow an initiate course). .
The most important point is that the position of the holes corresponds (within the tolerances of course) with the reality, so that when I designed a solution, I don’t have problems by the assembly in regard of the underlaying Arduino.
It is now the 3rd PCB that I intend to assembly, but now I have to determine on de bottom side of the PCB the limits of some components fixed on the Arduino R3/4.