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  1. #1
    Join Date
    Dec 2007
    Posts
    71

    Should my motors make noise?

    When i use one power supply (24v @ 8a switching power supply) The motors dont make any noise when they are moving or sitting still. But, when I use a different power supply (32v @ 0-10a probably switching too, dont know) the motors humm and whine when sitting or moving. Is this normal or not?

  2. #2
    Join Date
    Mar 2003
    Posts
    4826
    Should my motors make noise?
    The one turning the spindle should cause a noise. Noise = $$

    I've had an old mill with Bandit cnc that used to make a rather irritating high-pitched whine from some relatively low khz switching supplies. So you may have to compare the switching frequencies of the two supplies.
    First you get good, then you get fast. Then grouchiness sets in.

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  3. #3
    Join Date
    Dec 2007
    Posts
    71
    does it make any sense that it ran a little smoother that way?

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