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Thread: Setting up dual servo steering-how to?

  1. #1
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    Default Setting up dual servo steering-how to?

    I'll be attempting to set up dual servo steering on a large scale (1/5) catamaran hull, using 2 Savox 1270's. I need them to operate in opposite directions for a push/pull type system. What can I use to control the action of the servo's to operate in this fashion. I have a Scott Grey HVX dual voltage regulator to use for voltage control on the HV system it will have and I also have a Gryphon Extreme-Heli voltage regulator as well so either one will work. Just trying to determine if I need a gyro or similar device to operate both servos in opposite direction's. Thanks for any and all input :)
    "If guns cause crime, all of mine are defective"
    45"Speedfreek
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  2. #2
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    Stupid question, but will flipping the servo's in the mount in opposite accomplish this?
    "If guns cause crime, all of mine are defective"
    45"Speedfreek
    , Fightercat #068 ​, MyYoutube Vids

  3. #3
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    seems like it would yes. try it
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  4. #4
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    Quote Originally Posted by jj2003 View Post
    Stupid question, but will flipping the servo's in the mount in opposite accomplish this?
    That should do it John. I doubt if the extra rod length on one side will affect much

  5. #5
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    my question is, why do you want them to go separate directions?
    im visualizing two servos in my head, and even if they turn the same direction, it still should work....
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  6. #6
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    Quote Originally Posted by Luck as a Constant View Post
    seems like it would yes. try it
    Taking all item's out of the boxes now to try :)
    "If guns cause crime, all of mine are defective"
    45"Speedfreek
    , Fightercat #068 ​, MyYoutube Vids

  7. #7
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    Quote Originally Posted by Luck as a Constant View Post
    my question is, why do you want them to go separate directions?
    im visualizing two servos in my head, and even if they turn the same direction, it still should work....
    They will be mounted on their sides, so I need one to move forward and one to move reverse at the same time.
    "If guns cause crime, all of mine are defective"
    45"Speedfreek
    , Fightercat #068 ​, MyYoutube Vids

  8. #8
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    wouldn't having them go opposite directions either both pull or both push at the same time?
    edit: ahh ok.... now i see....
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  9. #9
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    Quote Originally Posted by srislash View Post
    That should do it John. I doubt if the extra rod length on one side will affect much
    Testing operation now to see once all the wires are connected. I'll let you know the result's :)
    "If guns cause crime, all of mine are defective"
    45"Speedfreek
    , Fightercat #068 ​, MyYoutube Vids

  10. #10
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    It would be more normal to set up the push pull with a double ended horn on on servo as normal then run a short pushrod/s from a second servo behind it to assist. that way any minute differences in the speed or distance the servos travel are just a little extra amp draw from the servos fighting each other rather than tightening and loosening the cables allowing the rudder to flutter.

    Paul "tug Killer" Upton-Taylor, Cat lover.
    FastElectricBoats.co.uk

  11. #11
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    Just curious would you use a y harness or a receiver with two #1 channels.

  12. #12
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    Why would you need over 900 oz of torque?


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  13. #13
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    You could use an RX with dual #1 channels, or mix one stick input into 2 different channels at 100% to utilise a dual power regulator to supply power to each servo through its own connector. A Y lead would run the current from both servos through a single connector, workable but not the best use of what the OP has.

    "a large scale (1/5) catamaran hull", if that is a modern offshore cat, the model would be in the region of 10 feet long. That would require some torque.
    Paul "tug Killer" Upton-Taylor, Cat lover.
    FastElectricBoats.co.uk

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