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12 top FAQs for 40w co2 laser engraving machine 2024

12 top FAQs for 40w co2 laser engraving machine 2024

Are you tired of encountering common hurdles in your engraving process? Say goodbye to frustration as we delve into 12 top FAQs for 40w co2 laser engraving machine 2024. Whether you're facing challenges with origin return, software compatibility, or light emissions, we've got you covered. Join us on a journey to streamline your engraving experience and unleash your imagination like never before with our state-of-the-art 40W CO2 laser engraving machine. In addition, we also provide you with the 10% off promotion code "BESTMP10" so that you can buy your favorite engraving machine products at the best price.

40w Co2 laser
40w co2 laser engraving machine code

1. What to do if the 40w co2 laser engraving machine returns to the origin abnormally after starting up?

  • 1.1.The direction of returning to the origin is wrong, not the rearleft corner.
    • 1.1.1. You need to import the device settings parameters directly into the lightburn software, and then select the correct motherboard and port. as the pictures show
lightburn software
device setting
GRBL
  • 1.2. The direction of returning to the origin is correct and will hit the device frame.
    • 1.2.1.Check whetherit can touch the limit switch when the 40w co2 laser engraving machine equipment returns to the origin
      • 1.2.1.1 You can touch the limit switch and check whether the X/Y limit appearance and wiring are normal.
40w co2 laser limit switch

        • 1.2.1.1.1. If the limit switch is normal, you need to use the resistance/buzzer setting of a multi meterto measure the X/Y limit plug on the motherboard, as shown in the figure below. Measure the resistance of the X/Y limit when it is not triggered. The value should be very small, almost zero (0.0003 ohms). The resistance value should be infinite in the triggered state. If the measurement is abnormal, please provide a video.
40w co2 laser

 

40w co2 laser
40w co2 laser
40w co2 laser
40w co2 laser
          • 1.2.1.1.1.1. If the measured resistance value is normal, the motherboard needs to be replaced.
          • 1.2.1.1.1.2.If the measured resistance value is abnormal, it means that the cable is damaged. You need to find the point where the cable is disconnected or replace the wire.
        • 1.2.1.1.2.The limit switch is damaged, replace the limit switch.
      • 1.2.1.2. It starts to hit the equipment frame without touching the limit switch. It may be caused by sheet metal deformation. A video needs to be provided to judge based on the actual situation.
  • 1.3. Click to return to the origin. The laser head only moves once and cannot return to the origin, and the alarm8 error message appears in the software.
40w co2 laser
    • 1.3.1. The software cannot find the limit. You need to check whether the X/Y axis limit connection is normal and whether the cable between it and the motherboard is damaged. Is the limit input terminal on the motherboard secure?
40w co2 laser

40w co2 laser
      • 1.3.1.1. If the limit switch is normal, you need to use the resistance/buzzer setting of a multi meterto measure the X/Y limit plug on the motherboard, as shown in the figure below. Measure the resistance of the X/Y limit when it is not triggered. The value should be very small, almost zero (0.0003 ohms). The resistance value should be infinite in the triggered state. If the measurement is abnormal, please provide a video.
40w co2 laser
40w co2 laser
40w co2 laser
40w co2 laser
40w co2 laser
        • 1.3.1.1.1. If the measured resistance value is normal, the motherboard needs to be replaced.
        • 1.3.1.1.2.If the measured resistance value is abnormal, it means that the cable or limit switch is damaged. You need to find the point where the cable is disconnected or replace the wire and limit switch.
      • 1.3.1.2.The limit switch is damaged, replace the limit switch.

 

  • 1.4. Click to return to the origin. The laser head only moves in one direction along the X or Y axis and cannot move in the other direction, and an alarm1 error message appears in the software.
40w co2 laser
    • 1.4.1. Either the X-axis limit or the Y-axis limit is triggered in advance. You need to check
      1. Whether the corresponding limit is normal.
      2. Check whether the cable between the limit and the motherboard is damaged.
      3. Whether the limit terminal on the motherboard of 40w co2 laser engraving machine is secure.
40w co2 laser
40w co2 laser
      • 1.4.1.1. If the limit switch is normal, you need to use the resistance/buzzer setting of a multi meterto measure the X/Y limit plug on the motherboard, as shown in the figure below. Measure the resistance of the X/Y limit when it is not triggered. The value should be very small, almost zero (0.0003 ohms). The resistance value should be infinite in the triggered state. If the measurement is abnormal, please provide a video.
40w co2 laser
40w co2 laser
40w co2 laser
40w co2 laser
40w co2 laser
        • 1.4.1.1.1. If the measured resistance value is normal, the motherboard needs to be replaced.
        • 1.4.1.1.2. If the measured resistance value is abnormal, it means that the cable or limit switch is damaged. You need to find the point where the cable is disconnected or replace the wire and limit switch.
      • 1.4.1.2. The limit switch is damaged,so you need toreplace the limit switch.

2. What to do if your 40w CO2 laser engraving machine cannot connect to the computer software?

  •  2.1. Check whether the red indicator light for USB on the motherboard light up after the machine is turned on
    • 2.1.1. Check whether you downloaded the driver (CH340)
40w co2 laser

      • 2.1.1.1. Yes, the driver has been installed
        • 2.1.1.1.1. Turn off the device and engraving software, unplug the Type-c data cable, restart the device and software after 15 seconds, and reconnect.
          • 2.1.1.1.1.1.  problem solved
          • 2.1.1.1.1. 2. Issue not resolved
            • 2.1.1.1.1.2.1. Plug the Type-c interface of the data cable directly into the motherboard interface without going through the adapter on the case. 2. Connect the data cable directly to the computer interface without passing through any USB docking station. 3. Replace the Type-c data cable or computer port
40w co2 laser
              • 2.1.1.1.1.2.1.1. problem solved
              • 2.1.1.1.1.2.1.2. If the problem is not solved, the motherboard of 40w co2 laser engraving machine should be replaced.
      • 2.1.1.2. No, the driver is not installed
        • 2.1.1.2.1. Install USB driver (CH340 or CH341)
40w co2 laser
            • 2.1.1.2.1.1. After the driver is installed successfully, close the device and engraving software, unplug the Type-c data transmission cable, restart the device and software after 15 seconds, and reconnect.
              • 2.1.1.2.1.1.1. problem solved
              • 2.1.1.2.1.1.2. Issue not resolved
                • 2.1.1.2.1.1.2.1.  1.Plug the Type-c interface of the data cable directly into the motherboard interface without going through the adapter on the case. 2. Connect the data cable directly to the computer interface without passing through any USB docking station.  3. Replace the Type-c data cable or computer port
40w co2 laser
                • 2.1.1.2.1.1.2.1.1. problem solved
                • 2.1.1.2.1.1.2.1.2. If the problem is not solved, replace the motherboard.
          • 2.1.1.2.1.2. The driver is not installed successfully. You need to shut down the device. After connecting the Type-c cable to the computer, check whether the red indicator light on the motherboard is on.
40w co2 laser
            • 2.1.1.2.1.2.1. The red indicator light does not light up
              • 2.1.1.2.1.2.1.1.  1.Plug the Type-c interface of the data cable directly into the motherboard interface without going through the adapter on the case. 2. Connect the data cable directly to the computer interface without passing through any USB docking station. 3. Replace the Type-c data cable or computer port
40w co2 laser
                • 2.1.1.2.1.2.1.1.1. problem solved
                • 2.1.1.2.1.2.1.1.2. If the problem is not solved, the motherboardshould be replaced.
            • 2.1.1.2.1.2.2. If the red indicator light comes on, you need to try another computer. If you can't try replacing the computer, replace the motherboard


3. What to do if the ammeter does not light up/black screen?

  • 3.1. Check whether the network cable interface on the back of the ammeter and the network cable interface on the power supply are firmly connected.
40w co2 laser
40w co2 laser
    • 3.1.1. If both ends of the network cable are firmly connected, you need to unplug the network cable from one end, as shown in the figure below. Then set the processing power to 100% and the speed to 100mm/s in the software, process a 20*20 square, and observe whether the equipment can emit light normally.
40w co2 laser
      • 3.1.1.1. The light can come out normally and the ammeter can be replaced by the customer.
      • 3.1.1.2. If the light cannot be emitted normally, you need to observe whether the network cable port on the power supply side lights up green during the processing of the equipment.
40w co2 laser
        • 3.1.1.2.1. If the green light lightsup, the power supply needs to be replaced.
        • 3.1.1.2.2. If the green light does not light up, you need to unplug the cables connecting the power supply and the motherboard, then plug in the network cable connecting the ammeter to the power supply, and observe whether the ammeter returns to normal.
40w co2 laser
          • 3.1.1.2.2.1. If the ammeter returns to normal and the light can be emitted normally by pressing the "Test" button,  the motherboardneeds to be replaced.
          • 3.1.1.2.2.2. If the ammeter still has a black screen, the motherboard and power supply need to be replaced at the same time.

4.What will you do if the 40w co2 laser engraving machine moves normally but does not emit light after it is turned on?

  • 4.1
    1. Confirm whether the power knob on the LCD ammeter is turned clockwise to the maximum.
    2. Whether the protective cover of the 40w co2 laser engraving machine has been closed, whether the door opening protection limit has been triggered, and whether the water protection signal on the LCD ammeter is in the "ON" state.
    3. Check whether the processing parameters in the software are set correctly.
    4. Check whether the light path is normal.
40w co2 laser
    • 4.1.1 The protective cover is closed normally and the water protection signal on the LCD ammeter is in the "ON" state. If the device still cannot emit light, you need to press the yellow "TEST" button on the ammeter to observe whether the device emits light.
40w co2 laser
      • 4.1.1.1The device can emit light by pressing the "TEST" button, but the software cannot control the light emitting
        • 4.1.1.1.1 You need to check the yellow test button on the ammeter to see if it can pop up normally when pressed.

 

40w co2 laser
        • 4.1.1.1.2 If the test button can pop up normally, you need to set the software processing power to 100% and measure whether the output voltage value of the PWM port on the motherboard is 5V.
40w co2 laser
40w co2 laser
        • 4.1.1.2.1 If the voltage is 0V or the value is very small, the motherboard needs to be replaced.
        • 4.1.1.2.2 If the voltage is about 5V, you need to check whether the wire between the PWM port and the power supply is broken somewhere or the terminal is not plugged in tightly. Use a multi meter to measure whether there is continuity between the power supply and the PWM terminal on the motherboard. If there is no continuity, replace the cable and terminal. If there is continuity,   the power supply needs to be replaced.
40w co2 laser
        • 4.1.1.1.3 If it cannot pop up normally, unplug the network cable from the back of the ammeter. Use the software to try whether it can be processed normally and then replace the ammeter
      • 4.1.1.2 The device cannot emit light when pressing "TEST"
        • 4.1.1.2.1 It is necessary to observe whether the current indication on the ammeter is normal, usually not less than 16ma
        • 4.1.1.2.1 If the current indication is normal, open the protective cover of the laser tube at the back of the machine and observe whether a beam will be generated in the laser tube when the "TEST" button is pressed.
40w co2 laser

A beam of light is produced in the laser tube and is purple or pink. Check and clean the reflector and focusing mirror, and check the light polarization

        • 4.1.1.2.2 If no beam is produced in the laser tube, the laser tube needs to be replaced.
        • 4.1.1.2.2 If the current indication is abnormal, open the protective cover of the laser tube behind the device and turn off the power of the device. Untie the red high-voltage wire on the laser tube from the white ceramic resistor, then connect the red high-voltage wire to a metal object to insulate it from the machine casing. Power the device, and then click the "TEST" button to see if sparks will occur at the contact point between the metal object and the red high-voltage line.
          • 4.1.1.2.1.1 If sparks occur, replace the laser tube.
          • 4.1.1.2.1.2 If there is no response, replace the laser power supply.
    • 4.1.2 If the protective cover is closed normally and the water protection signal is in the "OFF" state, press the limit switch of the door opening protection with hand and observe whether the water protection signal on the ammeter changes to the "ON" state.
40w co2 laser
      • 4.1.2.1 If the water protection signal turns to "ON" state, it is caused by the deformation of the protective cover and the door opening protection limit cannot be triggered. Customers are required to correct the protective cover sheet metal
      • 4.1.2.2 If the water protection signal is still "OFF", short-circuit the water protection terminal on the power supply.
40w co2 laser
        • 4.1.2.2.1 After short circuit, if the water protection is still "OFF", replace the power supply.
        • 4.1.2.2.2 After the short circuit, if the water protection signal turns to "ON" state, check whether the opening protection cable is damaged or replace the opening protection limit.
      • 4.1.2.3 If the optical path is abnormal, you need to adjust the optical bias www.youtube.com/watch?v=QMJRZCKUTGg&t=4s

5. What to do if the moving direction of the laser head is reversed or there is a mirror image problem in the engraving pattern?

  • 5.1 Customers are required to change the mechanical origin to the upper left corner in the device settings of the software.
40w co2 laser

6. What to do if the thermometer does not light up?

  • 6.1 Check whether the terminals on the back of the thermometer are secure
40w co2 laser
    • 6.1.1 If the wiring terminals are firm, you need to measure whether the voltage on the power supply terminal of the thermometer is DC 24V. As shown in the figure:
40w co2 laser
      • 6.1.1.1. If the voltage is normal, replace the thermometer.
      • 6.1.1.2. If the voltage is abnormal, you need to check whether the 24V output on the laser power supply is normal.
40w co2 laser
        • 6.1.1.2.1. If the output is abnormal, you need to replace the power supply. If the output is normal, you need to check whether the cable is disconnected or replace the cable and terminal directly.

 

7. What to do if the air output from the nozzle is small or there is no air flow?

  • 7.1. First open the cover on the right side of the equipment and observe whether the air pump vibrates.
40w co2 laser
    • 7.1.1. If the air pump vibrates, you need to unplug the air pipe from the air pump outlet and feel whether the air output from the air pump outlet is consistent with the air output from the nozzle. If the air output is consistent, the air pump needs to be replaced. If the air output is inconsistent, there is a problem with the trachea. You need to check whether the trachea is bent or damaged.
    • 7.1.2. If the air pump does not vibrate, you need to measure whether there is AC 110V voltage at the power supply terminal that supplies power to the air pump.

8. What to do if the 40w co2 laser engraving machine cannot be powered on?

  • 8.1  

1.Check whether the power supply voltage of the 40w co2 laser equipment power cord is normal.
2. Check whether the emergency stop switch is in the pop-up state.
3. Check whether the boat switch is turned on correctly.
4. Check whether the fuse at the power cord socket is normal.
40w co2 laser
40w co2 laser
40w co2 laser
    • 8.1.1 The power supply from the power cord is normal and all switches are turned on normally. If the device is still out of power, you need to check whether the input voltage on the power supply is 110V.
40w co2 laser
      • 8.1.1.1 If the input voltage is normal, replace the power supply.
      • 8.1.1.2 If the input voltage is 0V, you need to check whether the cables on the back of the boat switch and the emergency stop switch are loose. If it is not loose, you need to unplug the power cord of the machine and use a multi meter to measure whether 1 and 2 on the emergency stop button are connected, whether 3 and 4 on the boat switch are connected, and whether 5 and 6 are connected. as the picture shows
40w co2 laser
40w co2 laser
        • 8.1.1.2.1. If there is no continuity between 1 and 2, replace the emergency stop switch. If there is no continuity between 3 and 4 or 5 and 6, replace the boat switch.

 

9. What to do if the emergency stop switch or on/off switch cannot turn off the 40w co2 laser machine?

  • 9.1. Replace the emergency stop button or on/off switch

 

10. What to do if the equipment hits the border during border routing or processing?

  • 10.1. The processing graphics exceeds the equipment stroke or the starting position of the laser head is incorrect. 1. First check whether the processing starting position and starting point in the software are appropriate. 2. Check whether the graphics exceeds the border.
40w co2 laser
40w co2 laser

11. What to do if there is a problem with the laser tube?

  • 11.1. The laser tube leaks electricity, water leaks, is damaged, and the ceramic ring falls off

    • 11.1.1. Ask customers to provide relevant videos and provide labels on laser tubes

 

12. What to do if the engraving effect is not good and the laser power is attenuated?

  • 12.1. The tangent circle is not round, or the tangent circle is not closed, or the tangent square is not closed.

    • 12.1.1. Customers are required to provide corresponding pictures and use cross screws to adjust the X-axis or Y-axis belt.
40w co2 laser
  • 12.2. Engraving power decreased
    • 12.2.1. Turn the power knob non the ammeter to the maximum and press the yellow TEST button. Check the reading on the ammeter

      • 12.2.1.1. If the display is not less than 13ma, it means that the laser tube and power supply are normal, and the light polarization needs to be adjusted.
      • 12.2.1.2. If the reading is below 10ma, untie the red high-voltage wire of the laser tube from the middle, connect the red wire end to the surface of the metal object, and then click the red button on the power supply to observe whether sparks are generated at the connection between the high-voltage wire and the metal object. If there is no spark when the problem occurs, the laser power supply needs to be replaced. If sparks occur, the laser power supply needs to be replaced.
40w co2 laser
    • 12.2.2. Check whether the reflector and focusing mirror are clean
      • 12.2.2.1. If it is not clean, you need to wipe it with absolute alcohol and cotton swabs.
        • 12.2.2.1.1. After wiping it clean, the power is still not working
          • 12.2.2.1.1.1 Turn the power knob on the ammeter to the maximum and press the yellow TEST button. What is the reading on the ammeter?
            • 12.2.2.1.1.1.1 If the display is not less than 13ma, it means that the laser tube and power supply are normal, and the light polarization needs to be adjusted.
            • 12.2.2.1.1.1.2 If the reading is below 10ma, untie the red high-voltage wire of the laser tube from the middle, connect the red wire end to the surface of the metal object, and then click the red button on the power supply to observe whether sparks are generated at the connection between the high-voltage wire and the metal object. If there is no spark If the problem occurs, the laser power supply needs to be replaced. If sparks occur, the laser power supply needs to be replaced.
40w co2 laser
  • 12.3. Different locations have different engraving effects



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