i think its a very good idea in principle, but alignment would give you issues.
i do see the levels etc but still…
also, the space between the rool and the surface should really be much closer if not flush.
its a bit like the cartridge applicator that tech8 looked to sell. from memory they gave dan from the boards (based in spain) one for free to try after a post by him here. i was sent one also…
like the digiprint one, i worked well in principle, but i found it much quicker and less chance of alignment fail doing it using traditional application methods.
still a good concept though.