You got this right, now you can lift your pen from the paper and your drawing can become a real 3D object! 3Doodler is a 3D printing pen which does not require writing paper, it can just pull in the air!

For better pictures, you can draw structures later on to the surface to integrate, this is the cheapest way for 3D print! This 3D printing pen can keep you in your hand. Be careful because the metal tip of the pen gets heated up to 518 degrees Fahrenheit, its ink is made of quick setting plastic, which is firm in one moment, so that it is prepared to handle it.

A video is better than a long post…

Source: Kickstarter