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Fused filament fabrication (FFF), also known as fused deposition modeling (with the trademarked acronym FDM), or filament freeform fabrication, is a 3D printing process that uses a continuous filament of a thermoplastic material. [1] Filament is fed from a large spool through a moving, heated printer extruder head, and is deposited on the ...
In the context of FDM printing, STEP files are often used during the design phase, where detailed and accurate models are created in CAD software. These models are sometimes compatible with slicing software , but are usually converted into more specialized 3D printing formats like STL or 3MF for the printing process.
Multi-material support can be easily achieved with the companion file format MTL. 3MF: vertices and triangles saved as XML: Yes Backed by the 3MF Consortium as a new standard file format for 3D printing. VRML: vertices and edges, UV-mapped textures: Yes Designed particular for the World Wide Web. Predecessor of the X3D file format. X3D
A Bowden extruder is a type of extruder that pushes filament through a long and flexible PTFE (Teflon) tube to the hot end. [1] An alternative type of extruder which is also widely used in filament 3D printers is the direct-drive extruder , which sits closer to the extruder hot end.
Material extrusion-based additive manufacturing (EAM) represents one of the seven categories of 3D printing processes, defined by the ISO international standard 17296-2. While it is mostly used for plastics, under the name of FDM or FFF , it can also be used for metals and ceramics.
All these movements, together with some specific printer commands like the ones to control the extruder temperature or bed temperature, are ultimately compiled in the G-code file. This file can then be transferred to the printer for execution. Different densities of infill (in yellow), as generated by Cura slicer, from solid to hollow.
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
The diameter of the filament is defined by the process that takes place after the plastic has been heated rather than the diameter of the extruder nozzle. A different force and speed is applied to the filament as it is pulled out of the extruder to define the width of the filament, most commonly 1.75 mm or 2.85 mm diameter. [5] [6]