3d printier pen 1.New product in the world 2.Make models 3.Art products 4.Ce authentication 3d printer pen rial. 1set/box Similar as 3d doodler 3d printer pen utilizes plastic thread made of either acrylonitrile butadiene styrene (abs) that is melted and then cooled through a patented process while moving through the pen, which can then be used to made 3d objects by hand. The 3d printer pen has been described as a glue gun for 3d printing because of how the plastic is extruded from the tip, with one foot of the plastic thread equaling "about 11 feet of moldable material".