This has to be one of the most uniquely disruptive uses of 3D printing I ... indignation – ink refillers stick it to public enemy #1, ink salesmen, by using the tools of mass production.

No, I don’t need bullets, justification, kerning and a thousand other formatting tools ... so much colored ink it will use up two $15 cartridges before it finishes printing the return address.

3D printing has been used for all sorts of research projects over the years to make things like prototype parts and more. Scientists from Harvard have now devised a new ink and tools that allow ...