This series of FDM 3D Printers successfully combines multiple advantages such as speed, precision and functionality. Their printing speed reaches 600 mm/s, which is 3-4 times faster than traditional FDM 3D printers, and works can be possible to print out within 20 mins. In addition, this series is easy to use for both beginners and professionals, so this series is very suitable for personal daily use or school teaching, and can even achieve the production goal.