People have been doing this for a long time, but it feels a little too purist to me.
The components will still be the same, so you'll still need some kind of pick-n-place functionality to make anything, so why not just have another print head for making the traces / doing the PnP?
The head could lay copper wire/foil tape for conductors and do standard PnP from trays / reels of components, which you'll need either way.
It would be a little more geometrically limited than what this post imagines, but it would have the upside that it would actually work today and with most real electronics applications, unlike the low performance conductors made via conductive polymers as the OP's process imagines.
The components will still be the same, so you'll still need some kind of pick-n-place functionality to make anything, so why not just have another print head for making the traces / doing the PnP?
The head could lay copper wire/foil tape for conductors and do standard PnP from trays / reels of components, which you'll need either way.
It would be a little more geometrically limited than what this post imagines, but it would have the upside that it would actually work today and with most real electronics applications, unlike the low performance conductors made via conductive polymers as the OP's process imagines.