FDM- Fused Deposition Modeling

Definition: A spool of filament is loaded into the printer and fed through to the extrusion head. Once the printer nozzle has reached the desired temperature, a motor drives the filament through the heated nozzle melting. The printer then moves the extrusion head around, laying down melted material at a precise location, where it cools down and solidifies. Once a layer is completed the build platform moves down and the process repeats building the part layer-by-layer.