RF servo problems

  1. #1
    Nobby's Avatar
    Member Since
    Dec 2008
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    Norwich - UK
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    RF servo problems

    Help!

    I've just installed the servo from Manuel to my RF, but I'm having problems.
    The RF just falls forward under it's own weight!!

    Does anyone have a solution for this?

    thanks

  2. #2

    Member Since
    May 2010
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    Novi Sad,Serbia
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    Re: RF servo problems

    use a lighter RF :P

  3. #3
    Nobby's Avatar
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    Dec 2008
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    Re: RF servo problems

    yeah, thanks!!

    my RF isn't particularly heavy anyway

  4. #4
    formerly old_jedi_mind_trick Bobby Fett UK's Avatar
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    Re: RF servo problems

    Hey Nobby bro, I will install the one I got tomorrow and see if I have the same issue and see if a solution can be found. Do you have any photos of how you did it?

  5. #5
    Nobby's Avatar
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    Dec 2008
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    Re: RF servo problems

    Hi Rob,

    I'll try and get some photo's taken tonight for you.

    The only thing I can think of doing is putting felt or some other material that will cause friction, under the ear cap to rub against the RF pivot.
    I just don't want to burn out the servo!

  6. #6

    Member Since
    May 2010
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    Novi Sad,Serbia
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    Re: RF servo problems

    o.O or you could get a servo with a locking brake,their a bit bigger but you can lock it in place....

  7. #7
    Nobby's Avatar
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    Dec 2008
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    Norwich - UK
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    Re: RF servo problems

    Rob,

    I mounted a screw to the servo using aircraft grade 2-part resin (much stronger than the likes of Araldite)
    I then mounted the servo inside the lid with hot glue, using 4 screws to ensure a fully adjustable and perfect alignment.
    The RF stalk goes over the screw which I then drilled completely though and inserted a metal pin through the lot (see diagram)

    I just need to cut down the excess screw and sort out this business of the RF falling under its own weight!





  8. #8
    madmanmoe64's Avatar
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    May 2008
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    London, UK
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    Re: RF servo problems

    The problem is more likely, the control circuit. How are you controlling / powering the servo?

    Most servo set ups require a constant signal to stay in the same position, so the servo needs power even whilst staying still.

  9. #9
    Nobby's Avatar
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    Dec 2008
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    Norwich - UK
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    Re: RF servo problems

    Yeah, think you may be right there.
    The servo is only under power during travel. I think this is probably due to thae way that the switching is set up.
    I'll have to ask manuel if modifications can be made to supply constant power.

  10. #10
    madmanmoe64's Avatar
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    May 2008
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    London, UK
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    Re: RF servo problems

    Or if you don't want to go that route, use a couple of small neodymium magnets, one in the stalk and one in the ear, to hold it up.

  11. #11
    Nobby's Avatar
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    Dec 2008
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    Re: RF servo problems

    madmanmoe64 said: View Post
    use a couple of small neodymium magnets, one in the stalk and one in the ear, to hold it up.
    Now that's an idea I really like!

    thanks brother

  12. #12
    formerly old_jedi_mind_trick Bobby Fett UK's Avatar
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    Re: RF servo problems

    Nobby, not got this done yet, but I had a good play with it today. The shaft on the servo seems real stiff, I can't see it falling forward, I can't wind it with my fingers. Are you usind an Ali stalk out of interest.

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