The MakerBot Replicator makes solid, three-dimensional objects out of melted MakerBot PLA Filament. First, use MakerBot Desktop to translate 3D design files into instructions for the MakerBot Replicator. Then transfer those instructions to the MakerBot Replicator via USB drive, USB cable, or your local network. The MakerBot Replicator will melt MakerBot PLA Filament and squeeze it out onto the build plate in thin lines to build your object layer by layer. This method of 3D printing is called fused deposition modeling.