The HJC 2560 main control board integrates Mega 2560 and Ultimaker on one PCB to reduce space occupation. Optimize the structure and wiring, and use dual independent power supplies for the extruder and hot bed, each with fuse protection. The 3-channel 55A MOSFET and 12V voltage regulator IC are all equipped with heat sinks, making the operation of the main control board more stable. At the same time, HJC 2560 also retains some of the Ultimaker style, such as supporting 5-way stepper motors, compatible with Pololu stepper motor drivers, replaceable driver modules, and reserved pins that are led out through pin headers.