Please be aware that during the operation of the four Z-axes, there may be some differences in height caused to the four Z-axes. As time goes on, these differences may reach a certain value, triggering the machine's automatic Z-axis calibration mechanism. During this hardware calibration process, there may be some noise generated by the Z-axis, which is a normal machine behavior and should not be worrying.
If the noise happens frequently, we also suggest greasing the Z-axes with the grease supplied in the package.
Note:
1. The laser engraving machines are very precise products, and the balance of the four Z-axes is critical for the automatic lifting and lowering functions of the machine. Please do NOT place heavy objects on top of the machine or lean against it, as this may affect the Z-axis operation and even damage the machine.
2. If you will not use the machine for several days, we recommend that you adjust the machine to Idle mode, and the machine will drop to a lower height. If you will not use the machine for a longer period of time, we recommend that you adjust it to Transportation mode, and the machine will drop to the factory-shipped height. This will maximize the protection of the Z-axis and keep it in good working condition.