Oozing or Stringing in our pieces (threads), in this system it is more complicated to control the flow of the filament in an agile way, creating complications to control this type of artifacts.įriction, given that we normally have an extra distance between the extruder and the hotend, this has to travel through a PTFE tube that can offer some friction, in flexible filaments such as TPU printing becomes more complicated.įilament change, although it depends on the system/adjustment/expertise, again this extra distance makes it more complicated to change between filaments, especially during printing. Light, by separating the extruder part from the hotend we have a lighter kinematics assembly that allows us greater acceleration and printing speed Greater weight in the assembly that can cause problems in the kinematics if the chassis/kinematics assembly is not properly adjusted. Reduced distance to the hotend, allows greater control in the flow of the filament in addition to being able to use motors that are more contained in size and weight. Bowden extrusion, differs from the previous one in that the extruder is not directly attached to the hotend and the filament moves between both parts using a PTFE tube.Direct extrusion, as its name indicates, the extrusion system is directly connected to the hotend. ![]() Normally we can divide the types of 3D print heads into two types: The thermistor allows the control of the temperature in the cartridge that is distributed by the fuser to the nozzle that acts as the output of the filament at the melting temperature, depositing it to build, layer by layer, our printed pieces. fuser, thermistor, heating cartridge and nozzle is the so-called hot zone that is connected through the barrel to the rest of the assembly.sink and barrel, usually the “cold” area of the hotend that prevents the heat generated in lower areas from causing blockages in the flow of filament.The hotend is usually made up of different parts… Hotend, is the part that is responsible for “melting” the filament to deposit it in our printing area, forming layers that will generate our printed figures.traction gears, they are in charge to push the filament to the hotend.motor, it allows to move the gears that push the filament. ![]() ![]()
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