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Showroom DIY 2 DOF + traction loss + belt tensioner + Active pedal (Racecab style)

Discussion in 'DIY Motion Simulator Projects' started by hoyang, Mar 11, 2018.

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  1. hoyang

    hoyang handyman

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    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    I will make a diagram to make it more explicit
    hoyang, Sep 30, 2021
    #41
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Great to see you got it moving :thumbs

    It appears as though the motor mount and base are flexing, which will mask some of the motion cues. Adding some rigidity would help.
    • Like Like x 1
    noorbeast, Sep 30, 2021
    #42
  3. hoyang

    hoyang handyman

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    My Motion Simulator:
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    quick question, can the dead zone option of smc3 cause a delay on the motor tracking line?
    hoyang, Oct 1, 2021
    #43
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    From the SMC3 instructions: https://www.xsimulator.net/communit...driver-and-windows-utilities.4957/#post-48121

    Deadzone This creates a hysteresis zone for the motor feedback If you need values greater than 1, you probably have too much “slack” in your mechanical setup.

    So in a sense yes, a dead zone will cause some delay, as its purpose is to filter signals so that the output reacts less rapidly than it otherwise would by taking recent system history into account.
    • Like Like x 1
    noorbeast, Oct 1, 2021
    #44
  5. Pierre Lalancette

    Pierre Lalancette Sir Lalancelot Gold Contributor

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    My Motion Simulator:
    3DOF, DC motor, Arduino, 6DOF
    Unless someone will use it, why should you bother to make the diagram? I won't for sure. Way too complicated for me.
    • Like Like x 1
    Pierre Lalancette, Oct 1, 2021
    #45
  6. hoyang

    hoyang handyman

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    My Motion Simulator:
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    how i can do to properly adjust my pwm 0-10v converter.
    Screenshot_20211007-130105_Amazon Shopping.jpg Screenshot_20211007-130112_Amazon Shopping.jpg
    hoyang, Oct 7, 2021
    #46
  7. hoyang

    hoyang handyman

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    My Motion Simulator:
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    problem solved !!
    my concern is due to a bad frequency setting of smc3Utils once passed to 5khz the speed variation has started to work correctly, I still have some overshoots on my tracking line, check if I can adjust this with the other parameters.
    hoyang, Oct 13, 2021
    #47
  8. hoyang

    hoyang handyman

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    My Motion Simulator:
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    small overview of the bldc engine modify:
    20211120_081633.jpg
    hoyang, Nov 25, 2021
    #48
  9. hoyang

    hoyang handyman

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    My Motion Simulator:
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    • Like Like x 2
    Last edited: Jul 5, 2022
    hoyang, Apr 29, 2022
    #49
  10. hoyang

    hoyang handyman

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    My Motion Simulator:
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    modification of my bucket seat to add a 4-point belt with tensioner reel

    Attached Files:

    • Like Like x 1
    hoyang, Jun 20, 2022
    #50
  11. hoyang

    hoyang handyman

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    My Motion Simulator:
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    home made 4 point belt and stepper motor for my belt tensioner

    Attached Files:

    • Like Like x 3
    hoyang, Jun 20, 2022
    #51
  12. hoyang

    hoyang handyman

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    My Motion Simulator:
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    I find myself stuck with my communication on game engine. My arduino must receive a serial M1 800
    or M2 800 (800 has 0 being the position of my axis)

    I tried
    M1 <Axis4a> M2 <Axis5a>
    19200 baud rate
    8 bit data
    party none
    stop bit 1
    decimal
    hoyang, Jun 21, 2022
    #52
  13. John Snell

    John Snell Member

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    Hi Hoyang. Have you made progress with this issue? I'm happy to try and help and maybe test things on my system, if I can, but I don't quite understand the description of the problem.
    John Snell, Jun 23, 2022
    #53
  14. hoyang

    hoyang handyman

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    My Motion Simulator:
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    Je me rends compte que mon message précédent n'est pas du tout précis.
    ici, je crée un tendeur de courroie inspiré du tension-R de pt-actuator.
    après plusieurs ajustements et modifications, le système fonctionne plutôt bien (2 moteurs pas à pas nema 23 2.4Nm, 2 contrôleurs tb6600, un arduino nano).
    le code fonctionne avec tendeur simhub mais il ne me convient pas (je préfère des simtools beaucoup plus précis et souples).
    J'ai créé un code hier pour récupérer sur le moniteur le retour de simtools (moteur de jeu) et je pense avoir trouvé mon erreur.
    Exemple d'envoi de simtool :
    {M1<Axe4a> Je reçois M1##}
    le ## étant la valeur 8 bits d'Axis4a entre 0 et 1023
    J'ai besoin de modifier le code pour lire correctement cette valeur 8 bits.
    c'est là que je suis bloqué, je ne vois pas comment traduire cette valeur de 8 bits en décimal pour obtenir 0 à 1023.

    J'espère le mettre bien expliqué.
    Last edited: Sep 21, 2022
    hoyang, Jun 24, 2022
    #54
  15. hoyang

    hoyang handyman

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    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    here is my belt tensioner with surge and sway effect working under simtools. 20220702_174257.jpg 20220702_210251.jpg
    • Like Like x 2
    hoyang, Jul 2, 2022
    #55
  16. hoyang

    hoyang handyman

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    • Like Like x 2
    • Funny Funny x 1
    • Winner Winner x 1
    Last edited: Jul 5, 2022
    hoyang, Jul 4, 2022
    #56
  17. hoyang

    hoyang handyman

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    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    completion of the bucket seat finishes:
    20220831_164045.jpg

    20220831_164057.jpg
    • Like Like x 3
    hoyang, Sep 13, 2022
    #57
  18. HI_iam_new

    HI_iam_new 0dof

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    HI_iam_new, Sep 16, 2022
    #58
  19. John Snell

    John Snell Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    I thought I was nearly finished my rig, but now I realise I need one of these :)
    John Snell, Sep 18, 2022
    #59
  20. hoyang

    hoyang handyman

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    My Motion Simulator:
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    yes the noise you hear in the background is that of the nema motors, I am working on it to reduce the noise (the box is completely open).
    hoyang, Sep 21, 2022
    #60
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