NEW YORK – 3-D printing is all the rage. You can hit a button on your computer, which sends a file to a printer, which produces a small 3-D object out of plastic. It’s a cool technology, but it’s not ...

3Doodler takes a moment to get your head around. It’s a 3D printing “pen” that extrudes a strand of plastic you can use to draw wireframe designs on a flat surface or even rising up into the air.

A pen which can extract 3D resin from a pen tip and can perform 3D printing by hand drawing "3DoodlerAlthough it was a revolutionary idea, although the editorial staff actually reviewed it, the ...