Solution:

1, turn down the laser power;

2. Improve the cutting process;

3. Check the quality of cotton cloth;

4. Pad a layer of paper for cutting test;

5, refocusing the laser beam of the laser;

6. Check whether the blowing nozzle is damaged.

Note: Laser cutting is to irradiate the workpiece with a focused high-power density laser beam, so that the irradiated substance can be melted, vaporized, ablated or reach the ignition point quickly, and at the same time, the melted substance can be blown off by high-speed airflow coaxial with the beam, thus cutting the workpiece. Laser cutting is one of the thermal cutting methods.