PELLET-X has powerful software and hardware functions and extensive material adaptability. In terms of hardware, PETTET-X owns a 6-axis and above control system, which break the limits of traditional 3-axis control system, with greater freedom and flexibility in the printing process. And it breaks through the traditional FDM printing mode by linking the robot with external axes and rails and other equipment， achieving rapid printing of complex shapes and large components. The device can also print hollow three-dimensional structures and ensure the load capacity of space structures. In terms of software, the device is equipped with a simple and friendly human-machine interface. General workers can easily master the operation of the industrial robots with only a few hours of training, which greatly reduces the training cost. Users can directly import the 3D data information of the building model into the printing and processing master control platform. With a friendly human-machine interaction interface, it is easy for users to control the process and finish the printing task with high accuracy and efficiency.Besides, the machine realizes fully automatic adjustment of parameters during the printing process such as real-time extrusion volume, cooling volume, feed volume and temperature. Also, the device has a strong adaptability of a wide range of printing materials. With common plastic pellets as printing material, the cost will be reduced by 75% compared to wire printing. The main printing material of PETTET-X is PETG. It also supports the printing of a variety of mainstream materials and their modified products, such as high-temperature resistance, fiber reinforcement, toughness enhancement and other modifications to PLA, PETG, PC, TPU, nylon and other materials. In addition, smart 3D printing devices can extrude thermoplastic materials with melt temperatures below 400°C, which can be recycled and reused.PETTET-X construction 3D printing guns are capable of being equipped with 6-axis and above industrial robots，achieving Realize large-size, complex spatial structure, and personalized printing requirements in the field of architecture.