My bane in life has been an inability to narrowly focus, or rather more I follow opportunity as it presents. If nobody wants “X” (or the tools are no longer availible) but “Y” is available to accomplish, I don’t lose interest in “X” but add “Y” to what I am interested in doing. I have pretty much run the Alphabet that way, and have found that every older thing has insight to add to the new one that others have not brought to it, and so it is with the copper.I have not focused on repossee much though I have done a lot with copper. but I can see the opportunity of having a robot doing the hard work, and how that would be a really nice result.
As for the printing you describe there has been a lot of efforts that the laser is uniquely qualified to do by engraving wood, marble and even tile to an amazing level of precision.
I have not gone down the printing path as I have mostly stayed in 3D so there may be subtleties that copper can do but similar Stainless Steel or marble cannot but that is beyond my knowledge to know it.