Quote Originally Posted by Feign View Post
Sort of like a directed electroplating process, but with a flowing fluid rather than a suspension? There would be very little way to control where the metal plates at the fluid runoff from the point of intended deposition... Actually, I seem to remember a kind of vapor deposition additive manufacturing that blasts a charged work surface with charged metal particles. I thought it had lots of potential, but never saw a followup of it since the initial report.

Of course, just using an automated MIG welder setup like 3D Karma mentioned.
I think it has been developped to repair helicopter magnesium gear boxes in australia.