We already have 3D printers, so why not 3D pens?
U.S. startup WobbleWorks is rethinking the napkin sketch process with its 3Doodle pen. Instead of ink, the $75 pen uses colorful ABS plastic (the same used in many 3D printers) that quickly cools and solidifies, allowing the user to draw intricate 3D structures that literally jump off the page.
The trick, according to an article on the technology on NewScientist.com, is a built-in fan that cools the plastic as it leaves the nib. This cooling process gives the plastic structural properties almost instantly (see it in action in this NewScientist video).
The company just launched a fundraising campaign on Kickstarter that has already raised $68,340 through 764 donations.
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