The function of the tool setting instrument The measurement and compensation of the tool offset value in five directions can effectively eliminate the error and inefficiency caused by manual tool setting. No matter what kind of cutting tool is used for workpiece contour turning or milling, all tool tip points or tool axis lines involved in cutting must be adjusted or compensated so that they are accurately located at the same theoretical point or axis of the workpiece coordinate system on-line How to use: 1.Alligator clip is fixed on the cutter 2. port has been connected to the control board (A5 interface on the 3018pro control board) 3.Place (plastic + aluminum plate) under the tool material: plastic Color as shown GRBL Z-probe CNC Router Tool Setting Automatic Tool Setter. Thickness: 1.6mm (0.03mm) Tool Setting Function It can accurately locate the working surface, and is most suitable for PCB engraving. Easy to Use You can refer to our video to understand how to use it correctly. Probe Please change the Probe in Grbl to: G91G21G38.2Z-30F100;G92Z1.6;G0Z5F10 What does G91G21G38.2Z-30F100;G92Z1.6;G0Z5F10 mean: G91: Use relative coordinate mode G21: Use mm unit G38.2: Tool setting instruction Z-30: The Z axis moves 30mm in the negative direction, if it touches the tool setter, it will stop and set this point as the F100: the speed of the Z-axis when it is running ;: , next instruction G92: Coordinate offset, because the tool setter has a thickness, in order to remove the thickness of the tool setter, you need to set the offset Z1.6: Z-axis offset 1.6, 1.6 is the thickness of the tool setter, which is subject to the actual measured thickness of the tool setter ;: , next instruction G0: fast moving Z5: The Z axismoves to the position of coordinate 5, which is convenient for taking out the tool setter F10: Z-axis upward movement speed Package Contents: 1 x Z-Axis Router Mill Touch Plate set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.