Consider that a 3D printer can make brackets and fixtures at arbitrary angles, out of RF transparent materials like ABS, or RF lenses for microwaves out of Nylon, and a NanoVNA lets you experiment on antennas easily, by building scale models at say 10x the frequency. This seems very promising. I'm tied up in a major project that's sucking down all my time right now, but I see how this could be very interesting. The Snapmaker 2.0 machines allow milling operations, so one could machine a slot antenna in a plate or cylinder with their rotary module, or create PCB antennas just by flat-milling a copper clad PCB. The build volume is about a cubic foot, so HF experiments would have to be scaled up, but it would work.