Micro laser engraving machine JL1 operating instructionsThe 3W and 7W laser head module of same engraving machine can be exchanged, it supports one button offline engraving (The machine has internal memory, after connecting it with the computer, download the pictures and connect the machine with power supply, the machine wil start engraving ), it also supports the engraving operation on the computer and mobile phone app (pictures will be sent before engraving ,to ensure a stable work). The large carving area is 290 * 220mm. The machine is equipped with a maximum stroke detection circuit. When the machine is powered on, it will automatically detect the carving position. It is also capable of infrared cross laser positioning. When the carving object is placed, it would take less time. The machine has an on / off power switch for more convenient and safe operation.