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MY own 2 dof diy

Discussion in 'DIY Motion Simulator Projects' started by absyfadhel1, Apr 17, 2020.

  1. absyfadhel1

    absyfadhel1 Member

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    look at this , he use same as my motor driver 100a and he connect battery with psu and solved his tripping problem.
  2. Kevinski

    Kevinski If it doesn't fit, hit it until it does.

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    @absyfadhel1 that's fantastic mate! Looks like a good solution. I'll check it out.
  3. Kevinski

    Kevinski If it doesn't fit, hit it until it does.

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    @absyfadhel1 by the way, which code are you using for that motor controller?????
  4. absyfadhel1

    absyfadhel1 Member

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    smc3 mode 1
    • Like Like x 1
  5. absyfadhel1

    absyfadhel1 Member

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    @noorbeast using bridge rectifier with 12v 1200w psu Screenshot_20240204-115126.png maybe fix tripping or i'm wrong ?

  6. Kevinski

    Kevinski If it doesn't fit, hit it until it does.

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    @absyfadhel1 so Rufu Dufus SMC3 code mode 1? Interesting. Non H bridge controller similar to the sabretooth by the sounds of that. Direction commands and PWM hook up? You may be able to also use @BlazinH SPS sabretooth code with that controller as well.
  7. absyfadhel1

    absyfadhel1 Member

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    unfortunately it wont work because the one i have is same as monstermoto but instead of 40a its 100a
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  8. absyfadhel1

    absyfadhel1 Member

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    i mover my motor far front to be able to balance the rig, and i succeded in that. but now its twisting and cant solve it.

    https://youtube.com/shorts/1PZbGEOH8YA?si=8dKuaNob_35jLO3g

    i added dampers but its kill the motion angle like its let the rig to move about 10% of the motion.


    help what should i do?
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I think what you mean is wormdrive backlash: https://www.xsimulator.net/community/faq/wormdrive-backlash.293/

    If so some positive weight bias and shortest practical lever CTC will help a little to mask but not eliminate the backlash.
  10. absyfadhel1

    absyfadhel1 Member

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    yes, but not only backlsh, the distance between mid shaft and the motors is far, so when i move the seat with my hand its like twisting right and lift as same as not connected to the motor , its like in air so there is too much play and twist, before the motors were in short distance mid shaft and there is no twisting only up and down because of backlash, but now its twisting like the rod is not attached to the body .

    i will try to shorten the rod lenth from motor to body to the shortest possible and will se if there is any diffrent.
  11. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I the joint is allowing lateral twist then either replace it with a u-joint from a car tail-shaft or alternatively yo could construct a diagonal panhard rod between the bottom and top frames: https://en.wikipedia.org/wiki/Panhard_rod
  12. absyfadhel1

    absyfadhel1 Member

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    i searched about panhard rod and i didnt figured out how to yuse it and where to attach it.


    is it like this?
  13. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    A properly placed single panhard rod should do it, but yes diagonally between the top and bottom frame. A robust u-joint is simpler.
  14. absyfadhel1

    absyfadhel1 Member

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    i cant use u joint because i just finished from remaking my rig and weld the rod so ut fhard to remove and its newly painted, i didnt know this will happend ☹️, i will do research about how i need to add the panhard rod
  15. absyfadhel1

    absyfadhel1 Member

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    hi again, @noorbeast i do too much research and asked many friends but i couldnt find any udea how to solve the problem , panhard rod maybe a good i dea but i dont know how to attach it, i mean my motor in front side (foot mount) and its far from the seat because of that its tilt the seat when i just move it with my hand, when i increase the power if the damper its jot move and stable as i want, but there is like 10% of total movment.



    any suggestion?
  16. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    A diagonal panhard rod between the top and bottom frame uses a tie-rod or heim joint either end.

    Though as I said a robust uni joint may be easier to eradicate lateral twist, even if it does require some rebuilding.
  17. absyfadhel1

    absyfadhel1 Member

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    just ordered rod end joint m10 i dont now if its big enough , will try what you said. thansk alot
  18. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    M10 should do just fine.
    • Like Like x 1
  19. absyfadhel1

    absyfadhel1 Member

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    just to be sure, is this what should i do?

    Screenshot_20240426-134616.png
  20. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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