Screw-Based Extrusion Screw-based extrusion is a material deposition method used in 3D printing, particularly in direct pellet-fed extruders or paste extrusion systems. Instead of a filament-based approach, a screw mechanism pushes material through the nozzle. This technique allows for the use of recycled plastics, custom polymer blends, or thick pastes such as ceramics and food materials. It is common in large-format 3D printers and experimental research applications. |