Monday, October 18, 2010

Freshly Minted Technology: Inkjet Printing With Sugar

Posted by on Mon, Oct 18, 2010 at 4:30 PM

Do-it-yourselfers do the darnedest things. Make magazine's blog features a fascinating gadget created by two members of the online RepRap Forum. (RepRap is decribed as "an open source/open hardware project with the goal of producing 3D rapid prototyping machines that can replicate themselves.")

This intriguing geegaw is a homemade inkjet printer head that creates text in sugar instead of ink. It was constructed using a piezo buzzer as a control valve, whatever that means. The picture reminds me of the sugar-and-food-coloring letters you can buy in the grocery store to put on a birthday cake — but much, much cooler.

Go here to see the single-drop injection captured on video using a timed strobe.

cake72_opt_2_.jpg
If you've got an engineering inclination, you can chime in on the RepRap forum, as the creators continue to fine-tune the technology.

Meanwhile, the Make blog also reports on an automatic cake decorator that is similar to a Spirograph for icing. The result is pictured left.

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