Why don't we all just make Anti-Re-Rap
(an idea of mine)
you can build anything, out of "Voxel" tiny cubes, that are small clusters of materials, components etc, these are adhered together by painting them with adhesives with differing properties, like conductive, heat sinking etc, these "target adhesive inks" must all be dissolvable with one or more target "solvents"
So build, dissolve, sort, build something else
add more, etc
No need for anyone but us,
its not going to be easy but nothing that was good ever was, lets print a smart phone...