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For what it’s worth, the Kranio X is intended to be a hi-fi plug-in speaker, costing $269 under the first of two pledge tiers, with the other costing $359 alongside a poster, an engraving, and a copy of the stereolithography file the device will be manufactured from.

The researchers were also able to use multiple materials to build each hollow finger by selecting ones that could be 3-D printed in a process called multimaterial stereolithography.

Now, a team of researchers from the University of Washington and Rice University say they have produced functional tissue models using a 3-D printing technique called projection stereolithography.

The basic technology of projection stereolithography has been around since the 1980s, but “it wasn’t designed with biology in mind; it was used to make plastic structures,” says Jordan Miller, assistant professor of bioengineering at Rice’s Brown School of Engineering and a co-author of the new paper.

For a 3-D printer to create the fine vasculature an organ requires for nutrient delivery and waste removal, it needs the precision offered by stereolithography; but for transplants it would need safe, water-soluble photoreactors.