LIX 3D printing pen has the similar function as 3D printers. It melts and cools coloured plastic, letting you create rigid and freestanding structures. Lix has a hot-end nozzle that is power supplied from USB 3.0 port. The plastic filament ABS/PLA is introduced in the upper extremity of Lix Pen. The filament goes through a patented mechanism while moving through the pen to finally reach the hot-end nozzle which melts and cools it down. An interesting fact about this light-weight, engineered pen is that these structures can be formed in any imaginable shape. The LIX pen has a much sleeker form and a finer tip than similar devices we’ve seen like the 3Doodler, though it’s a bit more expensive. See more on their website.