3D pens printing with photopolymer resins

Photopolymer resins

— a variety of materials used exclusively in pens with a cold working principle. Under normal conditions, this resin has a liquid consistency, and it solidifies under the ultraviolet light from the LEDs built into the pen. Photopolymer resins do not require heating during use, making them as safe as possible in terms of burns; in addition, they are odorless. On the other hand, such materials are much more expensive than plastics for “hot” drawing.