The operation steps of the laser cutter engraver machine are as follows:

1. Preparation: Ensure that the power supply and cooling system of the laser cutter engraver machine work normally, check whether the cutting head and optical fiber of the cutting machine are clean, and prepare the materials that need to be cut.

2. Set parameters: Set the appropriate cutting parameters according to the type and thickness of the material to be cut. These parameters include laser power, cutting speed, gas flow, etc.

3. Positioning the material: Place the material to be cut on the cutting table, and fix it with a fixture or magnetic suction to ensure the accurate position of the material.

4. Adjust the focal length: Adjust the focal length of the cutting head so that the laser beam can be accurately focused on the surface of the material. This can usually be done by moving the cutting head or adjusting the lens.

5. Start cutting: press the start button and the laser cutter engraver machine starts to work. The laser beam is emitted from the cutting head, focused through the lens, and illuminated on the surface of the material for cutting.

6. Monitoring the cutting process: During the cutting process, the cutting process can be monitored by observing the position relationship between the cutting head and the material, as well as the quality of the cutting line. If necessary, the cutting parameters or focal length can be adjusted to optimize the cutting effect.

7. Finish cutting: When the cutting is completed, stop the work of the laser cutter engraver machine. Pay attention to safety and wait for the cutting head to cool before proceeding to the next step.

8. Cleaning work: clean the waste and debris generated by cutting, clean the cutting head and optical fiber, and ensure the normal use and maintenance of the equipment. It should be noted that when operating the laser cutter engraver machine, it is necessary to strictly abide by the relevant safety operating procedures, wear personal protective equipment, and avoid direct exposure of the laser beam to the eyes or skin, so as to avoid injury.