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2DOF DCS Motion Pit

Discussion in 'DIY Motion Simulator Projects' started by Intruder, Sep 21, 2016.

  1. Intruder

    Intruder Member

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    Thanks! I will take a video when someone holds the camera ;)
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  2. Intruder

    Intruder Member

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    Still no video but a quick feedback after the first longer flight and some tweaking:

    Regarding speed - I have had to turn down the power dramatically for flying, the hard g force Shakes doesn't give me a good feedback of what happened around me, it was just brutal and thrown me around on my seat, now it's much smoother and I can feel my banking (not in a turn) , positive g when pulling up or acceleration when pushing the throttle to the firewall.
    This helps me a lot in recognizing my attitude, especially in head down time for observing the radar or mfcd , for formation flying or in bad weather.

    So all in all , the bigger angel/less speed approach was the right for me.

    For driving I will need a faster shorter setting, that is right. But for flying this was what i wanted

    Remark: helicopter flying with rift and simpit is just pervert- 10 minutes till puke ;)
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  3. MarkusB

    MarkusB Well-Known Member Gold Contributor

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    Sounds good, thanks for the update!

    So what maximum angles do you have on both of your axis? (I measured mine with a standard smartphone app.)

    About "turning down power": I don't know how exactly you did this, but SimTools has this "smoothing" setting. I am using this one especially for flight simulations for making the movements softer. But it seems you already found a way. :)
  4. Intruder

    Intruder Member

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    The maximum angle is 15° in each direction, so 30° total - but moving 30° with full force is not a pleasure.
    Reducing power isn't the best term for it, but i turned my P parameter down and increased D to factor 4 to P in smc3, this gives me a slower less excessive movement. I have smoothing in simtools set to 20 on the heave function, it was necessary because by pushing down to negativ g after a pull up was way to hard. this surely would be better manageable on a real 3DOF platform .

    Hard maneuvers are still impressive but i do not fly acrobatics all the time. Surely, if i only had 4° which gave me the feeling of acceleration in a direction, i would miss the feeling of the attitude for precision flying.
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  5. Intruder

    Intruder Member

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    Little update:

    Tidy up a little, changed sabertooth communication to packet serial, building box for the electronics, mount camera on platform- still much to do but it's absolutely usable at the moment

    IMG_5581.JPG
    IMG_5567.JPG
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  6. Intruder

    Intruder Member

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    Little video
    As you can see in the end, the right motor was pushed to the end limit and smc3 shutting it off, so the axis rotated back and down . But this little problem was solved by increasing the limits ;)



    Edit- the movement was reduced for racing- but for flying you need way more, in DCS I use the whole 15° in each direction
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    Last edited: Nov 24, 2016