There are two types of extruders that are used in the 3D printing industry. This means that with a independent system, you have the additional option of being able to print with multiple materials within a single object and not just being able to print with support material which is only available with standard dual extrusion systems. Additionally, a dual extruder system can be independent or dependent. Dual extruders give the option of printing with a support material that is used to hold up certain designs which may require it due to the complexity of the object. Additionally, some form of gearing and hobbed shaft to hold the filament in place, a fan in some cases, a heat sink for better temperature regulation and finally the hot end.Įxtruders can come as a dual setup or a single extruder. One key point is to highlight that hot-ends are not the same as an extruder, but rather they are attached to it and they are the main location that is tasked with the melting process.Įxtruders come with a stepper motor that allows for the filament to be fed through. In simple terms, the extruder is the tool that holds the filament in place and controls the amount that is fed into a Hot-end. Extruders are a crucial component in 3D printers.
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