Every 3D printer builds parts based on the same main principle: a digital model is turned into a physical three-dimensional object by adding material a layer at a time. This where the alternative term Additive Manufacturing comes from.

What is FDM or FFF 3D printing?

The most commonly used technology in 3D printing is Fused Deposition Modeling (FDM). The FDM technology works using a plastic filament or metal wire which is unwound from a coil and supplying material to an extrusion nozzle which can turn the flow on and off. The nozzle is heated to melt the material and can be moved in both horizontal and vertical directions by a numerically controlled mechanism, directly controlled by a computer-aided manufacturing (CAM) software package. The object is produced by extruding melted material to form layers as the material hardens immediately after extrusion from the nozzle.

Is there a difference between FDM and FFF 3D printing?

No, FDM 3D printing is also known as Fused Filament Fabrication (FFF). The technology is exactly the same, but as the FDM is trademarked, the FFF name is free to use.

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