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Stupid ccpm servo settings !

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    Stupid ccpm servo settings !

    I'm damn stupid i just realised my end points for my 3 ccpm servos are all different

    all three have been moving in unequal distances and basically giving me some very messed up controls all this while, i think it was left over from the previous model memory for my feda or something.

    All this while i've been happily flying my silly hornet all around with what seems to be a fair amount of swash interaction.

    Thinking maybe that's why my hornet doesnt hover as nice as i expected but flies around pretty good.

    so i straightened that out and then my brushed motor decides to die suddenly damn, roughened up some gear teeth with it too.

    himaxx today ?!

    Anyway i notice that even after straightening the throws out there seems to be a bit of coupling on the swash plate when the blades spin up Wondering if anyone has tried holding their heli spinning up and giving some inputs...

    right roll seems to come with a little forward pitch, and left roll comes with a bit of backward pitch. When i align my blades facing forward, roll doesnt cause any movement so i'm pretty sure the swash should be ok.

    What's odd is this is apparent even on my feda, in fact more so.
    the flybars and blades even cross paths and i'm pretty sure the setup on the feda is ok.

    In flight there's no sign of coupling ( then again i'm so blur...). anyone know if there's some bizarre gyroscopic property , or blade rotational phase characteristic thats at work? does anyone else have this with their helis too?

    just try holding and spinning up , then roll right and left and see if there's any pitch thrown in, it's pretty mild.

    My guess is it's to do with the blades changing pitch throughout their rotation , any aeromechanics around to shed some light on this ?

    i do hope it's not because both my feda and my hornet are both major screwed up heh

    #2
    this phenomenon has been questioned earlier on dadhob. i mail paul goelz about it. if you know him, he has much expertise with piccolo and pioneered much of the mods for it. he says even with the ball swash mod, when holding on hand and throttling up, such a phenonmenon will happen. the effect of ball take place only in free flight. that effect being no coupling. if you do not have the ball then coupling will occur in flight.

    the point is this. as long as you don't feel the coupling and like it in flight, who cares what it does on your hand?
    JR PCM 9XII
    35.150


    BEAM E4

    HS65 Cyclic
    Futaba S3154 Tail
    Scorpion 2221-8
    JETI Spin 44A
    JR RS 77
    Logictech 2100 TL Gyro
    Thunder Power TP2070-3SX

    A Bottle Of Guts, Neat.

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