Buzzing Sound at Measure Board Startup??

[dvel56]

I have just started to notice that while starting a project, when my machine starts to calculate the project I am getting a buzzing sound from somewhere. After a few seconds (3 or 4) it stops and everything runs fine. It seems to make that sound at the start of any project while the spindle adjusts itself? Any ideas on this issue? what can I check?

Thanks
Dvel56

[cnsranch]

I've been getting that, too - I tend to ignore the stuff that doesn't blow the machine up....

[TerryT]

I'm not sure but I think that is typical with servo motors that have some hours on them. My first machine has been doing it for a couple of years now I think.

[rncurrie]

Mine has been doing that for the last two years. I've checked everything I could think of and found nothing out of the normal. It hasn't effected any of my carving so I'm living with it. It does seem to be worse in the winter though.
Richard

[DickB]

Normal for servo motors.