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Thread: The Definitive Servo Testing thread (Brands, Discussion)

  1. #11
    Senior Member itizme's Avatar
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    Re: Servo testing which brandshould and models please

    Jeff's the man for sure.
    Pm me the addy and I will drop Monday later in afternoon.

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    Senior Member JBajkor's Avatar
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    Re: Servo testing which brandshould and models please

    I would like to see how two of the Blue Bird servos compare to stated specs.
    BLS-2905, http://www.thunderboltrc.com/index.p...oducts_id=2211
    BLS-H50B, http://www.thunderboltrc.com/index.p...oducts_id=2204
    MAAC 12443
    Miracles are like magic. You will never see them if you don't believe.

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    Senior Member JoeT's Avatar
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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    Ok, order has been placed with Jeff at Thunderboltrc.com

    Thanks

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    Senior Member Cosmith's Avatar
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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    Any updates Joe???

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    Senior Member Bhughes's Avatar
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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    Sub
    TROUT FARM FLYERS
    Down with gyros
    Fake it till you make it

  6. #16
    Senior Member JoeT's Avatar
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    The package has arrived.

    Lookie what arrived today!! Woohoooo!!!

    This was courtesy of Thunderbolt RC, all servos will be returned after the testing.
    I'll post a teaser video this evening, then start updating this thread with a servo test per post.

    First tests will be:

    Torque
    Centering
    Amperage draw (peak)
    Voltage 2s fully charged Lipo
    Speed (This will need to be done with a different tool, so I may split this up)
    But I'll post an update in the same post.

    One surprising thing, as I was practicing with one of the servos, it drew 7.2 amps then stabilized at 5 amps, remember our little JR plugs and connectors are only rated at 3 amps..
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by JoeT; 03-29-2017 at 03:26 PM.

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    Senior Member JoeT's Avatar
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    Savox 2290 SG - Actual

    This one is the Savox 2290sg, this is a nice servo, good quality packaging.

    Brand: Savox 2290sg
    Test Voltage under load: 7.76 Volts
    Stable Amperage at stall: 6.36 Amps
    Max Torque: 577 Oz In
    Price: $192.89 CDN

    http://www.thunderboltrc.com/index.p...oducts_id=2448

    Video attached: https://youtu.be/gNGVOJia6ng
    Last edited by JoeT; 03-29-2017 at 09:49 PM.

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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    Wow... massive overrating of that Bluebird H50B

    On paper they are saying mid-700oz-in yet less than 600 in real world!!

  9. #19
    Senior Member JoeT's Avatar
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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    That was on a 7.49 volts. 700 Oz Inch is for 8.4 volt. We will see when it's fully charged. The lipo I was using went down to 6.8 volts under load. Let's see how it fares with a full fresh charge.
    Last edited by JoeT; 03-29-2017 at 05:27 PM.

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    Re: The Definitive Servo Testing thread (Brands, Discussion)

    Umm Joe at the end of the vid you said you would post the results on RC-CANADA! Only??
    Simcoe Model Aircraft Club (SMAC) Our forum is here.. http://smac.freeforums.net/forum
    http://rccanucks.com/showthread.php?...5596#post15596 clubnomax
    If you do not have the time to do it right, where do you get the time to do it over?

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