Lix lets you draw in the air Imagine being able to draw a solid 3D object in the air with your finger. That’s exactly the idea behind the Lix 3D pen, which can draw solid lines through the air with no need for paper. The aluminum device is 6.45 inches in length and approximately half-an-inch in diameter. While it's not the first 3D printing pen, the Lix pen is certainly the most lightweight and portable option to date. As high-tech as the Lix pen, the technology behind it is relatively simple. After plugging it into a power source from a USB port and waiting for it to heat up, the artist or inventor inserts a thin plastic filament through the back that melts as it progresses through the pen – much like a hot glue gun. This melted plastic is cooled the moment it exits the pen, meaning that it can create lines of plastic rising up from their initial flat surface. With a bit of practice, the pen’s creators have been able to create mind-bending works of art illustrating the pen’s versatility and capability in different fields. The petite pen can be used to craft apparel accoutrements, intricate sculptures, detailed containers… Lix has great potential and can be a perfect tool for stylists, architects, designers and anybody who are interested in 3D printing. The pen is expected to reach mass production in August or September. The Lix team also announced that it will be slashing the original price in half -- the Lix 3D printing pen will only cost $70 for the first 100 backers.