Fused Deposition Modeling (FDM) 3D printers are everywhere – from the home to the office; from the classroom to the workshop. PLA and ABS thermoplastic are the defacto standard materials used for these machines. But did you know that you could fabricate things with exotic 3D printer filament, too? You can now print in wood, metal, carbon fiber, and much more besides. As the name implies, exotic 3d printer filaments – also known as specialty or composite 3D printer filaments – are advanced 3D printing materials. They combine thermoplastics like PLA and ABS with ingredients like metal powder, carbon fiber, wood, and glow-in-the-dark compounds to create hybrid materials with unique properties.