3D printers convert spools of plastic filament (wire) into your imaginative creations. PLA Filament is a renewable bioplastic made from corn. MakerBot ABS Filament is good for detailed prints, but requires a heated build platform. Please make sure you choose the right filament for your printer. Makerbot Replicator 2 takes PLA. Makerbot Replicator 2x takes both PLA and ABS. Cube and Cube-X take either PLA or ABS, but require Cubify cartridges.