Along these lines, a current Kickstarter project, which uses a 3D printer and a saltwater jet in a very clever way to ablate metal electrochemically. It even pr

Along these lines, a current Kickstarter project, which uses a 3D printer and a saltwater jet in a very clever way to ablate metal electrochemically. It even presents the prospect of doing metal deposition printing by reversing the process/current (skip to 9:50). https://www.kickstarter.com/projects/athenatech/liquid-blade-3d-cut-and-etch-metal-with-your-3d-printer https://www.kickstarter.com/projects/athenatech/liquid-blade...