1. Troubleshooting
2. Polar

In most cases, weird Z-axis movements could be caused by wrongly set parameters. You can easily solve this by re-importing the parameters of the mainboard (The file can be found in the U disk that ...

1. Troubleshooting
2. Polar

Measure the input voltage of the main board with the input plug plugged in and removed. If the voltage always reads 24V, replace the main board with a new, identical one. If the voltage reads 24V...

1. Troubleshooting
2. Polar

First, check if the Z-axis is stuck. 2. Power off the engraver. 3. Manually turn the threaded rod of the Z-axis to see whether it can be moved smoothly. If NO. Lubricate the threaded rod. If this ...

1. Troubleshooting
2. Polar

In most cases, this could be caused by a faulty limit switch. Troubleshoot by the steps below. Remove the glass cover on the left side of the engraver. Remove the metal plate on top of the main bo...

1. Troubleshooting
2. Polar

 In most cases, this could be caused by an untriggered limit switch. Troubleshoot by the steps below. Remove the glass cover on the left side of the engraver. Remove the metal plate on top of the ...

1. Troubleshooting
2. Polar

If the laser power appears weakened Set the power to 100%. Set the ammeter at the rear of the engraver to the maximum. Test again and check the current value on the LCD. If the laser tube is emit...

1. Troubleshooting
2. Polar

Lines too thick  Check the focal length (follow the supplied focal length ruler). Check that the laser path is perfectly aligned. Check that the laser beam is emitted from the center of the...

1. Troubleshooting
2. Polar

Fix the lens when it's loose. Set the engraving speed to over 150.  

1. Troubleshooting
2. Polar

Open the software and adjust the PWM for the X-axis motor (as shown). Access "Vendor param" (password: rd8888) and click "Motor". Sequentially click "X", "Y", "Z" (if applicable), and "U"(if appli...

1. Troubleshooting
2. Polar

Reset the origin in the software to match the actual mechanical home position of the machine (As shown).                         RDWorks                                                 Lightburn  ...