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Question Idle motor arm position?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Nicki9knuckles, Dec 2, 2022.

  1. Nicki9knuckles

    Nicki9knuckles Active Member

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    Hey all!
    I am sure this question has been asked/answered but I haven't been able to find it. I am about to cut my rods to attach to my rear motor arms and I am not sure what should be my starting position for the motor arms. I THINK it should be as I have in the photo, horizontal. But please give me your thoughts, or link to the answer to this if you can, thanks so much for your help!
    Nick

    PS: Notice that I only have 3.5 inches of clearance from the cockpit to the top of the motor. Do you think this will be enough distance to enjoy the pitch motion? Or should I have made my cockpit higher?

    Thanks!
    motor-arm-position.jpg
  2. Nicki9knuckles

    Nicki9knuckles Active Member

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  3. Nikkatai

    Nikkatai New Member Gold Contributor

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    There’s a program you can use that’s very helpful go through the download section I forget what it’s called now I’ll try find it for you, but to me it looks like those motors need to be further behind the seat to get more leverage, check mine in my profile to get an idea
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  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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  5. Nikkatai

    Nikkatai New Member Gold Contributor

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  6. Nicki9knuckles

    Nicki9knuckles Active Member

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    thanks guys! I have since moved my entire cockpit forward away from teh motors and extended the rods. I also moved the rod attachment point to the arms closer to the motors to give more leverage. Thanks for your advice!
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  7. Nicki9knuckles

    Nicki9knuckles Active Member

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    I was really over estimating the length of arms I needed when I built them originally! I adjusted my arm attachment points making the total lengh of each arm maybe 3 inches long and its plenty. The seat moves more then enough. So if you read this, less is more with arm length!
  8. Dontmocme

    Dontmocme New Member

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    Always easier to shorten the arms instead of adding length.
  9. Nikkatai

    Nikkatai New Member Gold Contributor

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    Yeah depends what motors you’re using. I used motion dynamics with standard gearbox hence needing more leverage, so mine are about 700 long
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