Because of the engraving machine stepper motor with a pause at every step, the noise is normal.

In a certain frequency, relief engraving machine will produce the body resonance, to convey a clear noise. Such noise will not affect the normal use of the machine.

And the harmful effects to the engraving machine mainly about the following categories:

1, an abnormal spindle motor running noise. Such noise generation, prove that the existence of quality problems, or spindle bearing life has expired, or the quality decline， replacement can be considered at this time.

2, an abnormal noise when walking axis. Many of these phenomena exist in the X axis. Tombstone engraving machine mostly axial motor bearing damage or lack of lubricant X-axis rail, too dirty, too tight, ball wear, ball drop, etc., must be a timely manner.