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Hotend
A hotend is a component used in fused filament deposition 3D printers. Its purpose is to heat up and melt filament material for depositing into the intended shape. The hotend is usually made of a bulk heat-conductive material with an internal resistive heater, coupled with a thermistor or thermocouple for precise temperature control. In common desktop 3D printer designs, the heater is located near the nozzle, and a heatsink is attached upstream (on the colder side). A heatbreak component made of dissimilar metals (bimetal) can be used to limit heat transfer to the cold filament above, increasing the controllability of the melted filament. Nozzle The nozzle is an interchangeable tip attached to the hotend with a small diameter hole through which the melted filament is extruded. In desktop fused filament deposition printers, different sized nozzle holes can be used to balance between printing speed and precision. Common large sized ones (1.0mm) extrude more material per trave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fused Filament Deposition
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. Filament is fed from a large spool through a moving, heated printer extruder head, and is deposited on the growing work. The print head is moved under computer control to define the printed shape. Usually the head moves in two dimensions to deposit one horizontal plane, or layer, at a time; the work or the print head is then moved vertically by a small amount to begin a new layer. The speed of the extruder head may also be controlled to stop and start deposition and form an interrupted plane without stringing or dribbling between sections. "Fused filament fabrication" was coined by the members of the RepRap project to give an acronym (FFF) that would be legally unconstrained in use. Fused filament printing has in the 2010s-2020s been the most popular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3D Printing Filament
3D printing filament is the thermoplastic feedstock for fused filament fabrication 3D printing, 3D printers. There are many types of filament available with different properties. Filament comes in a range of diameters, most commonly 1.75 mm and 2.85 mm, with the latter often being confused with the less common 3 mm. Filament consists of one continuous slender plastic thread spooled into a reel. Production Commercially produced filament 3D printing filament is created using a process of heating, Extrusion, extruding and cooling plastic to transform Nurdle (bead), nurdles into the finished product. However, unlike a 3D printer, the filament is pulled rather than pushed through the nozzle to create the filament. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
