Need mechanical Help

Discussion in 'General Electronics Chat' started by mpcotuong, May 20, 2011.

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  1. mpcotuong

    Thread Starter Member

    Aug 26, 2010
    170
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    Hi All,

    I have a question and need your help. I have a DC Gear Motor of 12V to lift the object weight 4 pounds up to 15 inches. I am looking for free drop after Motor lift the object up. I think about that for save power use only one way motor, other way for free moving and drop the object down. I don't know how to construct mechanical to make it free moving down, I think you are can help me with it, please let me know your suggestion and diagram is helpful. Hope to hear back from you soon.

    Thanks,
    Kevin
     
  2. PackratKing

    Well-Known Member

    Jul 13, 2008
    850
    215
    A sketch of the layout would be nice.

    Gear motors, unless the reduction is extremely high, will often backwind by gravity on the load lifted after the power is cut. tho' this isn't what you are asking for

    Does your scheme include a method to latch your load in the up posit. ??? prior to freedropping ??

    There are a couple not-too-awful-complex ways to do what you need, which lack the requested info.
     
    Last edited: May 20, 2011
  3. mpcotuong

    Thread Starter Member

    Aug 26, 2010
    170
    0
    Hi PackratKing,

    I am not good on mechanical. I just need to free drop after lift up the object. Is there any mechanical make this free moving?

    Thanks,
    Kevin
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Kevin,
    You already have a thread open with what seems to be this same request:
    http://forum.allaboutcircuits.com/showthread.php?t=54566

    You really should not open up more than one topic that are basically identical, particularly when you have already had replies in the other thread. Otherwise, the forums would get "littered" with lots of identical threads, and it would get confusing.
     
  5. mpcotuong

    Thread Starter Member

    Aug 26, 2010
    170
    0
    Yes, I did but I lost it and now I have seen it gain. The new one I put more detail. Do you have any idea of my question?
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
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