Scientific American: five 3D printers

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Last month, the open source 3D printer RepRap made the first successful copy of itself. And it's not the only 3D printer technology emerging from the workshops of ingenious makers. Over at, JR Minkel posts a slideshow of five machines to "print" 3D objects, including the RepRap, Fab@Home, and, seen here, the amazing Candy Fab from Evil Mad Scientist Labs. The Candy Fab prints objects by fusing layers of sugar. 3D Printers

Previously on BB:
RepRap universal constructor achieves self-replication
Build a fabricator at home
3D printing comes to Sears



  1. Meh. Wake me when they have 4D printers. I’ve got this cool idea for a tesseract paperweight.

  2. I wish they would stop with this “self-replicating” baloney. RepRap didn’t even come close to self replicating — it created the plastic braces needed to hold all the metal parts, motors, and electronics together on another RepRap. It wasn’t even close to 50% of the needed parts, and MUCH assembly was required. If you’re going by that definition, machine tools such as mills and lathes have been self-replicating for a hundred years.

  3. I wish people would stop bitching about Reprap’s “self-replication” moniker. Nobody said it implies “self-assembly”. Nobody said it was the absolute first thing to ever do it.

    It’s a machine that has reached the goal of making the custom parts required for a second copy of itself. That’s all the reprap people mean when they say “self-replicating”.

  4. The Candy Fab prints objects by fusing layers of sugar

    Also, it has a disturbingly high number of users that resemble Augustus Gloop.

  5. Nobody said it implies “self-assembly”.

    Yeah, don’t you know that humans aren’t self replicating because our young are not fully functional at birth? Clearly, nature didn’t read The Rules.

  6. I have access to a knee mill, lathe, bandsaws, tooling etc. at work. So what am I going to build? A reprap, of course (the arduino version).

    And once I have it – Custom Lego!!!

  7. Heh, I watch a confectionery competition on the food network, where they make the most intricate sugar towers, and I always despair at the time and effort required… but this Candy Fab thing looks like it’ll do exactly what I want.

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