The examples I noticed were things like antennas, grids, a microspring. I didn't see anything resembling a full circuit.
https://www.youtube.com/watch?v=MGZ0qpPN1uk
once one can make traces in 3D as part of a case/shell/frame/structure things get _very_ interesting --- consider that one electronics designer actually worked up a 3D CAD system:
just for making 3D printed enclosures:
>My primary use case for 3D CAD is designing 3D-printed enclosures for my electronics projects.
So, imagine what folks like that will make when they are able to 3D print a full circuit board as part of a structure, with components place/oriented in it in novel ways (heat dissipation? LEDs to indicate status?)....
They can be placed manually or automated.