Answers to Common Questions about Laser Marking Machine Core Components

This section addresses common problems with laser marking machine core components, covering troubleshooting and maintenance techniques for lasers, galvanometers, and focusing lenses.By sharing practical cases, we help users quickly locate the cause of equipment malfunctions and provide solutions to problems. This improves equipment utilization efficiency and extends the life of components.

Common Problems and Solutions.

The laser output power has fallen.

When the laser is weak, don't rush to replace parts.Most of the time, the problem is that the lens is dirty, or that the cooling system has malfunctioned.If that doesn't work, check the temperature of the water in the chiller. Water above 25 degrees centigrade can affect the efficiency of the laser.

The laser's cooling system is inadequate.

It's very common for dust to accumulate in the vents of machines that have been used for a long time.I suggest that everyone blow their heat sinks once a month with an air gun, especially those who do metal engraving.If you hear a muffled sound coming from the cooling fan, chances are it's because dust has gotten into the bearings. You can open it up and add a little grease to fix the problem.

Troubleshooting mirror system malfunctions.

The figures on the sculptures were deformed.

If the patterns come out crooked, don't panic.Take the mirror assembly apart and use a multimeter to measure the resistance of the electric motor coil. It should be between five and eight ohms.If the readings are off, it means that the windings are burned out.Another way to cut corners is to test the X-axis motor on the Y-axis.

The accuracy of the positioning is reduced.

If the cutting position keeps shifting, check to see if the grounding wire is properly connected.Many old hands in the industry tend to overlook this detail, but the fact is that static electricity has a particularly large effect on galvanometers.If that doesn't work, you can try adjusting the potentiometer on the driver board. Remember to use a non-magnetic screwdriver and test the results as you adjust.

The following are some tips for maintaining a microscope:

Frequent lens contamination.

The problem of the lens getting dirty is not entirely due to the environment.Here's a little tip: Place a thermal paper on the work table. If there are scattered lines around the laser spot when marking, it means that the focus is not properly adjusted.Adjusting the light path can reduce more than 60 % of lens contamination problems.

Repairing scratches in mirror surfaces.

If you find a scratch on your lenses, don't throw them away. A polishing compound of cerium oxide can save them.When operating, remember to go around in the same direction. Never go back and forth.If the scratch is deeper than 0.2 millimeters, it will affect the focus of the lens, and it's best to replace it.