Connect the wire of the knife setting tool to the knife setting connector of the control board, and connect the clip to the ground wire of the control wire. (The clip can be added on the main axis, but the main axis and the ground wire should be also connected.) When the cutting tool touches the knife setting tool, the knife setting process is completed.
When Z pairs the knife, the fish mouth clip is clamped on the PCB and is in contact with the copper foil. One end is clamped on the tool. When the “Z tool setting” button is pressed, the Z axis automatically cuts the knife at the speed of F100, when the tool tip touches the PCB. The moment, that is, when the parallel port 13 is turned from the high level to the low level, the lower knife stops, the Z coordinate is automatically reset to zero, and the Z axis automatically lifts the knife 20, and the Z tool is completed.