Material extrusion is an additive manufacturing technique that uses a continuous filament of thermoplastic or composite material to construct 3D parts. The material in the form of plastic filament is fed through an extruding nozzle, where it is heated and then deposited onto the build platform layer by layer.
Material extrusion is now the most popular additive manufacturing process in terms of availability for general consumer demand and quality. As per ISO/ASTM 52900-2015, it is one of the 7 Additive manufacturing processes. You can read the other types here.
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