Ortur laser engraving machine common troubleshooting and solutions

    As the world's leading laser engraving machine brand, Ortur has always been committed to providing users with high-performance, easy-to-operate equipment. In order to help you quickly solve problems in use, we have compiled the following common troubleshooting and solutions, combined with Ortur's official technical support resources (www.orturlaser.com), to help you efficiently restore the operation of the equipment.

1. The laser head does not emit light or the power is abnormal

    The laser head does not work is one of the most common problems, which may be caused by hardware or software settings:
Check the power supply and connection
    Make sure that the laser power plug is firmly connected and the high-voltage wire is not loose or detached. If the ammeter has no reading, it may be a power failure and the laser power supply needs to be replaced.
    Check whether the laser tube is aging or damaged. If the color of the laser tube is abnormal (such as purple), you need to contact Ortur after-sales for replacement.
Optical path and lens cleaning
    Clean the laser tube outlet, reflector and focusing lens. Dust will seriously weaken the laser intensity. Use anhydrous alcohol and cotton swabs to wipe gently to avoid scratching the lens.
    Correct the optical path to ensure that the laser beam is perpendicular to the material surface. If the optical path is offset, you can refer to the official tutorial of Ortur to recalibrate.
Software and parameter settings
    Confirm that the power setting in the LightBurn or LaserGRBL software is not zero, and the laser module type matches (such as LU3-20A needs to select the corresponding driver).
    Check whether the cooling water circulation of the laser tube is normal. If the water temperature is too high (over 30℃), the power will drop. The cooling water needs to be replaced and the water pipe blockage needs to be cleared.

2. Poor engraving effect: different depths or blurred edges

    Engraving quality problems are usually related to parameter settings or mechanical conditions:
Focal length and material adaptation
    Re-adjust the focal length to ensure that the distance between the laser head and the material surface is accurate. You can use the focal length test tool provided by Ortur for quick positioning.
    For different materials (such as wood, acrylic, metal), you need to adjust the power and speed parameters. For example, wood engraving recommends a power of 50-80% and a speed of 3000-8000 mm/min; metal requires higher power (80-100%) and lower speed (500-1000 mm/min).
Mechanical parts inspection
    Check the belt tightness. Too loose will cause engraving misalignment, and too tight will increase the motor load. Use a screwdriver to adjust the belt tension screw to ensure that the tension on both sides is consistent.
    Clean the guide rails and apply lubricating oil to prevent the slider from jamming and affecting the accuracy. If the motor makes abnormal noise, it may be that the synchronous wheel is loose and the screws need to be tightened.
Firmware and software optimization
    If Error 9 (G-code lock) appears during engraving, you need to update the firmware to the latest version (such as Master 3 needs to be upgraded from 206 to 211), and check whether the belt tension meets the standard.
Enable the "overburn compensation" function in LightBurn to prevent the edge of the material from being burned due to laser retention.

3. Software connection failure or abnormal movement

    When the device cannot communicate with the computer or the motor does not respond, you can follow the steps below to troubleshoot:
Driver and port settings
     Windows users need to install the STMicroelectronics virtual serial port driver and ensure that "STMicroelectronics Virtual Com Port" is displayed in the device manager. If the port is not recognized, try to change the USB cable or computer interface.
    Select the correct COM port in LightBurn and check that the baud rate matches the device (usually 115200).
Firmware and initialization issues
If homing fails, check that the emergency stop button is pressed and reset the device by entering "$rst=*" in the LightBurn console.
For Master 2 Pro users, if homing fails after using the rotating attachment, enter "$22=43" in the console and restart the device, or update the firmware to permanently solve the problem.
Interference and grounding treatment
    Ensure that the device and computer are well grounded to avoid static interference. If the signal line has poor contact, try replacing the shielded line.
Close other programs that occupy the serial port (such as serial port debugging tools) to avoid port conflicts.

4. Preventive measures and long-term maintenance

    Regular maintenance is the key to extending the life of the device and reducing failures:
Daily cleaning
    Use compressed air or a soft brush to clean the dust inside the body every 30 hours, especially around the laser module and motor.
Check the cleanliness of the lens weekly to avoid smoke residue affecting laser transmission.
Mechanical Maintenance
    Add lubricant to the guide rails and timing belts every month to ensure smooth movement. Avoid using ordinary engine oil, and recommend Ortur official grease.
Check the belt wear every quarter. If cracks or excessive stretching occur, replace it in time.
Firmware and software updates
    Visit the Ortur Support Center regularly to download the latest firmware, fix known issues and improve performance.
Follow Ortur's official blog and social media for the latest operating guides and material parameter recommendations.

5. Contact Ortur Technical Support

    If the above methods cannot solve the problem, you can get professional help through the following channels:
    Official website support: Visit www.orturlaser.com to submit a work order, or call the customer service hotline.
    Community forum: Join the Ortur user forum to exchange experiences with other users, or refer to the LightBurn official knowledge base.
    Video tutorial: Search for keywords such as "Ortur Laser Master 3 firmware update" on YouTube to watch the official guidance video.

    Through system troubleshooting and regular maintenance, more than 90% of Ortur laser engraving machine failures can be quickly resolved. Ortur always puts user needs at the core and provides full support from hardware to software to ensure that your creative process is smooth. Visit www.orturlaser.com now to explore more engraving tips and resources!