✔We have developed the DMP 3D printing system ourselves, and DMP stands for Dual Material Printing or Duplication & Mirror Printing. It can move 7-axis at the same time and has the firmware collision avoidance function of running two nozzles efficiently.✔Our self-developed TENLOG Multi Nozzle 3D Printer Motherboard has a 7-axis motion control system. The Tenlog motherboard can work for 500 hours without interruption. The motherboard firmware is based on marlin 1.0.x and is open source. You can buy it to make a spare part for Tenlog Dual Extruder 3D Printer.✔Tenlog Dual Extruder 3D Printer Motherboard's working voltage is 24V, the maximum voltage is 30A. Tenlog motherboard's working voltage is 24V, the maximum voltage is 30A. He has seven 4pin motor interfaces. Provide 240W of power to the hot bed. The width is 11.63mm, the length and height are 2.24mm. It provides two data interfaces, SD card and USB Port. Its chip is Atmega2560. It provides four photoelectric sensor interfaces. Support power-off resume, and filament runout sensor.