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  1. #1
    Hello,

    I was trying to cut a dust shoe today. When the moves are slow on the Y axis, I get weird electronic sounds like these:

    https://www.youtube.com/watch?v=Kh2AWswAMvw

    or
    https://www.youtube.com/watch?v=Z7KIcwAn0FU

    It's the best example I could find, sorry if it is funny.

    My settings in Mach3 for all axes are:
    Velocity: 2500mm/min
    Acceleration: 800mm/min

    All axes are calibrated and work fine.

    Thanks for your help !

    All the best,
    G.
    Last edited by eurikain; 28-03-2016 at 08:09 PM.

  2. #2
    Steppers sing to you when they are happy ;-)

  3. #3
    Lovely said, but does that mean they're fine and I can live happily with that ? No harm no hurt ? :D

  4. #4
    Quote Originally Posted by eurikain View Post
    Lovely said, but does that mean they're fine and I can live happily with that ? No harm no hurt ? :D
    They will be fine, but you can change the micro stepping along with the other settings to keep the scale right and probably get rid of the music.
    ..Clive
    The more you know, The better you know, How little you know

  5. #5
    I currently have all axes set to 1/8 micro stepping. I have AM882 drivers and Nema23 4.2A 3.2mh from CNC4YOU. In Mach3 I've got Velocity on 2500mm/min and acceleration set to 800mm/s/s on all axes.

    It's weird because when the Z axis moves slowly (for example, approaching the surface for cutting), it doesn't make that sound. It seems like sometimes Mach3 is able to control the steppers at low speed without having them sing, while at other times they sing like a choir.

    Reducing the MCS would lower accuracy right ?

  6. #6
    Still trying to workout if your taking the Piss or serious.?

    If your serious then how the hell can we tell if the sound your hearing is normal or not if you don't let us hear it.?

    Yes steppers do change pitch with different speeds but again to what degree depends on other factors like feeds n speeds and resonance of machine.

  7. #7
    As Dean says, the steppers will make noises at low rpm. I suspect due to your machines construction, it is acting like a sound box amplifying whatever the stepper noise is. If it is annoying, try a higher microstep.
    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

  8. #8
    Here is a video so you guys can hear it:
    https://www.dropbox.com/sh/fl4e71rn5...96NyYBXta?dl=0

  9. #9

  10. #10
    Quote Originally Posted by komatias View Post
    .... I suspect due to your machines construction, it is acting like a sound box amplifying whatever the stepper noise is
    That stands after watching your video. It is working like an acoustic guitar if you will. You motors do not sound too bad otherwise. The squeaking though? Lubrication needed on the rails?
    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

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