Insert a filament and a bead of plastic comes out of the other end. This extruder can be installed on machines that have 3 axes of movement. Includes hot end, nozzle, fan, heat sink, stepper motor, heating element and all hardware to assemble.
To make this extruder work, you will need an extruder controller to monitor the temperature of the hot end and allow current to the heater cartridge to melt the plastic. with the 3D printer main board, Arduino and motor drivers and you have the makings of a 3d printer.
This kit comes with all of the components needed for assembly, including the stepper motor.