He Drew a 3D Cube on my Thumbnail
CreoPop 3D pen The CreoPop is a 3D pen, like the 3Doodler you may have seen before. It does the same thing. But, technically, it’s a very different device. The 3Doodler uses heat to melt its building material, like a 3D printer. As it cools, it hardens. The second version of the 3Doodler is due out in June, for $100. The CreoPop (photo above), which won’t be available for a few months, uses visible light to harden a highly proprietary gel “ink” that it extrudes. That means two things: First, you can draw in the palm of your hand (if you can hold still). I drew a little 3D sketch on top of my thumbnail. As I slowly moved the pen through space, the strand of material first adhered to my thumbnail, then hardened as I moved the pen. Like an ordinary pen, the ink came out when I moved the pen, and stopped when I held still. There weren’t any buttons to press when the pen was on (you have to hold down a button on the 3Doodler to heat the ink). And the sket...
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