RDC6332M, when it can follow up, press the auto focus button, the laser head starts to descend, touches the iron plate, and then rises to the reference focus position, and then stops, without lifting

The circular cutting is not closed, the straight line is not straight, the XY axis jitters

The RDC6442 board fails to connect the device in the processing preview when downloading graphics to the back panel of the motherboard

Using V8 software, in user parameters, cutting parameters and idle acceleration are invalid after they are changed,how to solve?

RDC6442 panel processing will appear "file incompatible" what is the reason?

heres a problem