integrated structure and simple circuit are convenient for disassembly, repair and assembly. Effective Heating and Cooling System there are heater block and heat sink, heater block with insulation silicone case keeps the temperature stable and makes the printing even; dual-fan design makes dissipation evener, solidify model quickly and print precisely. Optimized design of heatbreak decreases the loss of heater block temperature by reducing heat conduction, and at the same time, it transfers its temperature to the radiator, which ensures the production stability. High quality thermistor and heating tube are up to 260 ?, with rapid-risen temperature, precise temperature control and good stability.