Description: 42 stepper motor Cooling fan working voltage 12V Extrusion head heating voltage 12V , resistance 4.8-6 ohm Model: 3DA-001A Material: Metal Printing Material: 7/100 inch/ 1.75mm filament ABS or PLA The extrusion nozzle: 0.4mm The flow rate of Nozzle: about 24cc / h Sports shaft speed:40mm/s The default voltage is 12V, if you need to use 24V. Please replace the fan and the heating pipe/thermocouple / heat resistance Melt high temperature materials - up to 260 ºC with 100k thermistor 300+ ºC is possible with thermocouple Package Includes: 1 x 0.4mm Nozzle Extruder Print Head