Common faults of vibration engraving machines include: power failure, motor failure, controller failure, sensor failure, transmission system failure, tool failure, etc. Power failure may be caused by damaged power cords, poor contact of power sockets, and other reasons; Motor faults may be caused by damage to motor bearings, short circuits in motor windings, and other reasons; Controller failure may be caused by internal circuit faults or connection line faults between the controller and the motor; Sensor failure may be caused by damage to the sensor or a faulty connection between the sensor and the controller; The transmission system malfunction may be caused by damage to the transmission belt, transmission gears, and other reasons; Tool failure may be caused by tool wear, tool breakage, and other reasons.