Common Faults and Repairs of Diode Laser Engraver
The laser head does not emit light
- Check the power supply and connection: confirm whether the laser power supply is connected, whether the high-voltage line is loose or detached, and whether the signal line is loose.
- Check the lens and optical path: check whether the lens is broken and whether the optical path is seriously offset.
- Check the water circulation system: check whether the water pump is damaged or not powered, whether the water inlet and outlet are connected in reverse or the water pipe is broken.
- Check the computer settings: if it can be shot and self-checked, and if the data is not emitted, check whether the computer settings are correct.
The engraving depth is uneven or not deep
- Check whether the water flow of the water circulation system is smooth, and whether the water pipe is bent or broken.
- Check whether the focal length is normal and recalibrate.
- Check whether the optical path is normal and recalibrate.
- Check whether the paper on the plate is too thick and whether the water volume is too much, and re-correct it.
- Check whether the beam is parallel and adjust the belts on both sides.
- Check whether the lens is broken and replace it.
- Check if the lens or the laser tube emission end is contaminated and re-clean it.
- Check if the water temperature is higher than 30℃ and replace the circulating water.
- Check if the laser head or focusing lens is loose and tighten it.
- Make sure the laser current intensity reaches 8mA.
- If the laser tube is aged, it needs to be replaced.
Abnormal reset
- Check if the sensor is dusty, poorly contacted or damaged, wipe the dust off the sensor or replace it.
- Check if the flexible guide belt data cable is poorly contacted or damaged, trim the data cable and re-plug or replace the data cable.
- Check if the ground wire contact is reliable or if the high-voltage wire is damaged, re-ground or replace the high-voltage wire.
- Check if the motor wire contact is poor.
Leakage
- Check if the initialization is correct and the data has been sent (correction).
- Check if the operation sequence is reversed (re-output).
- Check if the ground wire is off to eliminate static interference.
The computer cannot output
- Check if the software parameter settings are normal and reset them.
- Check whether the engraving machine starts by positioning first and then outputs, and then outputs again.
- Check whether the machine has not been reset in advance, and correct it again.
- Check whether the output serial port is consistent with the serial port set by the software, and reset it.
- Check whether the ground wire is reliable, whether static electricity interferes with the data line, and re-ground it.
- Replace the computer serial port output test.
- Reinstall the software and reset the test.
- Format the computer system disk and reinstall the software to test.
- The motherboard serial port is damaged and needs to be repaired or replaced.
The above are some common faults of diode laser engraving machines and their repair methods. The specific operation may need to be adjusted according to the specific model and usage of the equipment. If the fault cannot be solved by yourself, it is recommended to contact professional maintenance personnel for inspection and repair.
Common Faults and Repairs of CO2 Laser Engraver
In addition to the same problems as diode laser engravers, they also include:
Control panel problems
- No display on the screen: Check if the control panel screen is lit. If not, check the power supply or the display itself.
- Error code: If the control panel displays an error code such as “Water Error” or “Cooler Error”, check the water circulation system.
Low voltage power supply problem
- Power indicator problem: If the low voltage (24V) power indicator is off, check the power cord and fuse.
Laser tube replacement
- Laser tube aging: The laser tube is the core component of the laser engraving machine and will eventually need to be replaced due to natural wear. If there is a drop in cutting force, poor engraving quality, or visible damage, it indicates that a new laser tube needs to be replaced.
Optical problems
- Optical path alignment: Even slight vibrations or machine movement can interfere with the alignment of the laser beam, resulting in uneven cutting, poor focus, or power loss. Regular inspection and realignment of the optical path is necessary.
The above are some common faults of CO2 laser engravers and their repair methods. The specific operation may need to be adjusted according to the specific model and usage of the equipment. If the fault cannot be solved by yourself, it is recommended to contact professional maintenance personnel for inspection and repair.
Common Faults and Repairs of Infrared Laser Engraver
In addition to the same problems as the above laser engraving machines, it also includes:
Engraving size error or error code action
- Check whether the signal line is damaged and whether the machine grounding is normal.
- Check whether the application software parameter settings are correct.
Unsatisfactory processing effect
- Check whether the guide rail is clean and whether the laser head and lens are loose.
- Check whether the laser power setting is normal.
The computer cannot output
- Check whether the software parameter settings are correct.
- Check whether the output serial port is consistent with the software settings.
- Check whether the ground wire is reliable and whether there is static interference.
Cleaning hook edge misalignment and non-closure
- File and software parameter check: Check whether the edited file is correct and whether the software parameter settings are correct.
- Hardware check: Check whether the left and right belts are consistent in tightness, and whether the belt or synchronous wheel is slipping or jumping teeth.
The above are some common faults of laser engraving machines and their repair methods. The specific operation may need to be adjusted according to the specific model and usage of the equipment. If the fault cannot be solved by yourself, it is recommended to contact professional maintenance personnel for inspection and repair.
Daily Maintenance Points
Daily maintenance of home laser engravers is very important, which can help extend the life of the equipment, improve work efficiency, and ensure the quality of engraving. Here are some daily maintenance points:
Keep it clean
- Clean the work surface regularly to ensure that there is no dust and debris.
- Clean the laser head and focusing lens regularly to prevent dust and smoke from affecting the laser path.
Check and clean the lens
- Check the lens regularly for stains or damage, and clean it with a special lens cleaning fluid and soft cloth.
Check the optical path
- Check the alignment of the optical path regularly to ensure that the laser can focus correctly.
Check the cooling system
- Ensure that the cooling system, including the water pump, water pipes and coolant, is working properly. Replace the coolant regularly to prevent the laser tube from overheating.
Check and maintain the guide rail
- Check the guide rail regularly to ensure that it is clean, and apply an appropriate amount of lubricating oil on the guide rail to reduce friction and wear.
Check the timing belt
- Check whether the timing belt is worn or loose, and adjust or replace it if necessary.
Check the power supply and connection
- Check the power cord and data cable connection regularly to see if they are firmly connected to avoid problems caused by poor contact.
Software update
- Check and update the control software of the engraving machine regularly to get the latest functions and performance improvements.
Check the laser tube
- Check the laser tube regularly for signs of aging or damage. The laser tube is consumable and needs to be replaced regularly.
Avoid overload operation
- Do not run the engraving machine continuously for a long time, especially at high power, to prevent overheating and equipment fatigue.
Environmental control
- Keep the working environment stable and avoid adverse environmental conditions such as high temperature, high humidity, and excessive dust.
Operation training
- Ensure that the operator understands the correct use of the equipment and daily maintenance knowledge to avoid damage caused by improper operation.
Check electrical components regularly
- Check electrical components for signs of aging, ablation or damage, and replace them if necessary.
Keep a maintenance log
- Record the details of each maintenance and repair, including the date, maintenance content and replaced parts, so as to track the maintenance history of the equipment and predict future maintenance needs.
By following these daily maintenance points, you can ensure that your home laser engraver is in good working condition, reduce the occurrence of failures, and improve work efficiency.
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