1. How to fill the coolant
2. How to replace the RGB board
3. How to replace the Y1 board
4.How to replace the mainboard
5. How to replace the Z axis adapter cable
Then you can try to engrave a project in the upper left corner and see if the laser head will touch the material. If it doesn't touch, it must be caused by the Z-axis cable, and you can try to replace it by referring to the link. If it still doesn't fix it, that will be another cause. Be careful not to damage the new cable during the test.
6. How to replace the laser power supply
7. How to replace the laser tube
We have two types of laser tubes (refer to the picture below), their installation methods are slightly different, please select the installation instruction video according to the model you got.
For Model 1
For Model 2
8. How to replace the water tank
9.How to replace the water pump