Shop for 3D Printing Filament. 3D printing filament is used in the FDM (fused deposition modeling) 3D printing process to create objects from a wide variety of thermoplastic materials including ABS, ASA, HIPS, Nylon 6, Nylon 6/66, PET, PETG, PLA, TPU, and TPC. The 3D printing filament is manufactured to tight dimensional tolerances and engineered to have consistent processing characteristics when run through 3D printing machinery. Our 3D filaments are available in 1.75 mm and 2.88 mm diameter 1kg spools in a variety of different colors. Stocked products typically ship in 2-5 business days. Can't find what you need? Get a quote.