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Compact Moving Seat - 3DOF - Arduino - development and construction

Discussion in 'DIY Motion Simulator Projects' started by peel, Nov 13, 2019.

  1. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    hello designers,
    I'm starting my project.
    I want to divide the movement of the seat into two parts:
    1.the movement of the backrest will be announces the magnitude of inertia and centrifugal force. Size of movement on the shoulders +/- 100mm for surge and +/- 80mm for sway.
    2. the movement of the sitting announces oversteer or understeer of vehicle skid.
    Rotational movement +/- only a few degrees.

    RS seat fn.jpg
  2. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    Hi, I am adding a scheme.
    RaceSimulator schema.jpg
  3. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    These geared motors I plan to use, they are gifts from an electrician from the company.
    It is at 24V, but I am currently testing it at 12V and the current consumption is up to 2A.
    The output shaft is 10mm in diameter.
    IMG_20191113_043409.jpg IMG_20191113_043428.jpg Motor 24DC.jpg
  4. _Gus

    _Gus Member

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    I'm not super familiar with 3dofs, but I don't think a 24-48 watt motor will be sufficient for motion simulation.
  5. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    when I connect the motor 24V, the power from the transmission is great, I can not keep in my hands (100mm lever).
    And if it is not enough, I can use 2 motors per axis
  6. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
  7. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    For days I tuned the arduino code. And I did an LFS test. I think that's good. It's smooth and has no trembling.
    • Like Like x 1
  8. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Just for consideration, traction loss (pivot near feet) is more realistic for a race sim than yaw (center rotation).
    • Winner Winner x 1
  9. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    - 12V vs 24V will lower the speed by half, that's a pity. You may consider using 24V PSU!

    - hands are not representative...
    your seat + your weight will induce high inertia when doing forward/reverse movments even with a short lever

    - using two motors per axis is not easy (if not synchronised, they will conflict each other...) or you have an idea about this?
  10. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    Thank you for their suggestions. I have to build and test.
    I'm limited by the size of the racing room.
    If the seating was fixed, but would the pedals move laterally?
    This option would also be better, because next to the seats I have H shifting.
    sedacka a paka.jpg
  11. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    Hi, I split the seat and the backrest is moving.

    IMG_20191207_101123.jpg IMG_20191207_101926.jpg IMG_20191208_104754.jpg
  12. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    I installed the rods and motors.
    IMG_20191208_060039.jpg IMG_20191208_060053.jpg IMG_20191208_104813.jpg
  13. peel

    peel New Member

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    My Motion Simulator:
    3DOF, Arduino
    And I tested.
    So far only one axis. I'm waiting for the delivery of the engine drivers.

    • Like Like x 2
  14. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Great to see your rig in action :thumbs

    Looks like a race harness will be necessary, to keep you pinned to the seat.