Ten Common Problems of Laser Marking Systems and Their On-Site Solutions

The guide lists 10 common problems with laser marking machines, including blurry markings, lack of response, and reduced laser power, and provides solutions, helping operators quickly identify problems and get production back up and running.The content includes hardware maintenance, software adjustment and tips for daily use. It is suitable for equipment administrators and first-line technicians to refer to.

The marking is blurred or uneven.

Check to see if the focus is correct.

Many beginners tend to overlook the importance of adjusting the focus.If the edges of the pattern are blurry, try cutting a test piece, and adjust the speed of the rotary table until the pattern is clear.The focal length required for different materials is different, and the settings for metal and plastic may differ by several millimeters.

Clean the lens and the mirror.

If there were a lot of dust in the workshop, then the lenses would be covered in half a month.Dip a piece of lens paper in alcohol and gently wipe in a circular motion.Don't use a paper tissue to rub hard, because you'll scratch the lens and have to spend a lot of money to replace it.

The equipment suddenly stopped working.

Check the emergency stop switch.

Last week, Old Wang was in a panic, saying that the machines wouldn't start. It turned out that during cleaning someone had accidentally pressed the red emergency stop button.This design is meant for safety, so remember to turn the knob clockwise after you have reset it.

Check the cooling system.

When the temperature in the workshop exceeds 35 ° C in summer, the laser is more likely to overheat and shut down.He checks the heat of the heat sink and the rotation of the fan.There's a trick: Take a video of a fan blade with your phone. If the video shows a ghost image of the blade, then the phone is using interlaced video.

The laser power is clearly reduced.

Adjusting the output of a laser.

A 20 % drop in power over two years is normal.Open the power calibration function in the control software, and adjust it slowly with the power meter.But don't be too greedy--overloading it will shorten the life of the laser tube.

Check the water circulation.

If the coolant becomes cloudy, change it immediately. If the pipes are clogged with scale, the laser's temperature can rise to 80 degrees in five minutes.He suggests that a mixture of distilled water and antifreeze should be used to protect the engine from both rust and freezing.

The software indicates a communication error.

Reinsert data cables.

I've had USB ports go out seven or eight times because of oxidation.Don't put too much faith in the original cable. Buy a cable with a magnetic ring to reduce interference. Be careful when plugging in to make sure the cable is oriented the right way.

Upgrade the driver.

Some older systems have a tendency to clash with software.When you go to the website to download the driver, be sure to distinguish between 32-bit and 64-bit systems. After installing the driver, reboot your computer and try again.

The carving was slightly off center.

Calibrate the galvanometer.

After each change of fixture, it is recommended that the origin be rechecked.In the software, select the "crosshair" function. This will make the laser head move in a square pattern. If the corners of the square are not aligned, adjust the compensation parameters.

Check the levelness of the platform.

The difference in height between the four corners of the platform is measured with a vernier caliper, and if it exceeds 0.5 millimeters, a metal shim must be inserted.Don't underestimate the importance of this. A tiny error can turn a logo designed to be circular into an oval.

Suddenly there was an unusual noise.

Lubricating the tracks.

If the screw makes a squeaking sound, it probably needs oil.The old grease is cleaned off and replaced with a white lithium grease.Don't use butter, which can cause even more trouble.

Check the tightness of the belt.

Over time a belt will stretch. When adjusting the tension, press down on it with your fingers; it should sink about 3-5mm.If it's too tight, the motor will have to work too hard, and if it's too loose the gears will slip.