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My new proyect: 2dof racing seat

Discussion in 'DIY Motion Simulator Projects' started by chu, May 17, 2016.

  1. MAYA One

    MAYA One Member

    Joined:
    Jul 7, 2015
    Messages:
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    Location:
    china
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    468Coins
    Ratings:
    +16 / 0 / -0
    My Motion Simulator:
    2DOF, SCN5
    Good idea~~~~
    • Like Like x 2
  2. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    149
    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    A friend asked me why I made a closed box for the dc motors. Well there is a good reason for it, the force that the dc motor can offer with 30A, is very dangerous.(could easily cut a finger...) And if you have pets or children at home, is a question to think about. The only thing you must considerer is to let space enough to the axis movement and like i did, some kind of ventilation grid. And fans for the motors(you can use the same fans for motors and arduino)
  3. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    After testing a lot of hours my settings for simtools all worked fine, until my girlfriend started using it. Well the way you drive influences a lot for the 120% margin on configuration. In the two hours the right motor stopped twice cause she passed the limits. That´s whyI must change the setings
  4. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    tecnician
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    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    these are my new settings: IMG_20160524_190055.jpg IMG_20160524_190120.jpg IMG_20160524_190131.jpg
  5. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    149
    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Maybe i lost a bit of realism. But now the motors doesn´t stop.
    I´m thinking about the posiblity of putting longer cranks on the motors. About 100mm long.
    To having more travel on the axes.
    Actually my cranks are about 70mm.
    Could this affect negativily to the nice working of the sim? or maybe the motors couldn´t move the seat?
    Anyone can give advice about what kind of crank to use that fix hard to the wiper motor? maybe a left crank for bicycle?

    Attached Files:

  6. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I finally get the dead zone to "0" and the motion turns INCREDIBLE, without the disturbing tremors I got before when there was no motion.Now I can feel all the bumps and irregularitys.
  7. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    The trick was to move the hall sensors closer to the magnets, only 1mm make the diference, awesome...
  8. chu

    chu 2dof racingseat

    Joined:
    Dec 2, 2015
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    149
    Occupation:
    tecnician
    Location:
    VITORIA
    Balance:
    937Coins
    Ratings:
    +34 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    As "historiker" recomend me,(thanks;)) I´ll better ask this here:
    I´m thinking about adding a third motor with another monster motoshield and need some advice.
    The idea was about mounting the new motor behind the seat with a wheel and to put the rotation center under the pedals.(after getting them fixed to the seat with a bigger table, with some castors under)
    First question:
    How many centimeters of movement will be enough (both right and left from the center position of the seat) to having a nice traction lost sensation? I´ve been reading that 9 cms is enough...
    second question:
    Would it be appropiate to take the full power of a monster with only one motor or better to put two motors?
    Could the arduino uno R3 control 4 motors?
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    20,539
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,052Coins
    Ratings:
    +10,777 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    • Like Like x 1