Selective metal Sintering is amazing but slow. concern not, a innovation that was initially established to smooth and pattern laser beams is here to save the day, according to a new paper by Lawrence Livermore researchers.

In a paper titled “Diode-based additive manufacturing of metals utilizing an optically-addressable light valve,” the researchers set out a procedure for utilizing an range of high-powered laser diodes among other things to print a whole layer of metal from powdered metal at one time. No a lot more forward and backward, left and right. just one bright flash and you’re done. Naturally, the innovation is still in its infancy, but substantial 3D printed metallic parts are something we’ve always really hoped for.

According to [Matthews], the first author of the paper, the mojo of the process comes from a personalized laser modulator: the Optically Addressable Light Valve which functions likewise to liquid crystal-based projectors but can manage the high energies connected with powerful lasers. There’s a lot more information directly from the paper’s authors in this phys.org interview.

While it’s true that now is the time for direct metal 3D printing, it appears that for the time being the average hacker is stuck with alternative techniques for printing metal. While it’s not the same, pewter casting with PLA might suffice.

Thanks to [Kevin] for sending this in!