... making sure the process safely, we install the limit switch for X, Y, Z axesand have a emergency ... exact showing the toolpath, controllingthe spindle speed and cool on/off.2) MDI screen-in this screen you can ... of the spindle, spindle CW/CCW, the limit switch,the flood cool and mist cool. Each control has ... , the driver box has its own power on/off switch and a bright red LED thatindicates when power is ...