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Seat Mover 2DOF Herve069

Discussion in 'DIY Motion Simulator Projects' started by herve069, Apr 1, 2021.

  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    21,145
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    148,565Coins
    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Tuning makes a big difference and needs to be dialed in for the rig and personal taste.

    I did this test some time ago to show the actual rig movement, and even more dramatic inertia driven movement of my head, the projection is not actually moving, rather I mounted a camera to the rig to capture its movement:

  2. herve069

    herve069 Simracer

    Joined:
    Mar 25, 2021
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    38
    Occupation:
    workshop instructor
    Location:
    France
    Balance:
    - 16Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    2DOF
    I have been using my Seatmover for a few months. But I have a problem. When I brake, the force applied to the brake prevents the seatmover from pushing. How is yours behaving?
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    Balance:
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    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Braking results in pitch forward, against my parasitic harness arrangement, which is augmented by the small arc my rig's heave knee moves through, resulting in a small amount of actual surge axis movement.

    I manually differentiate the Max/Min values in my Tuning Center surge values to also have gear shift kick as I shift down: https://www.xsimulator.net/community/faq/snappy-gear-change-motion.121/
  4. herve069

    herve069 Simracer

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    Occupation:
    workshop instructor
    Location:
    France
    Balance:
    - 16Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    2DOF
    I think my leg is blocking my seat when I brake...
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    Location:
    St Helens, Tasmania, Australia
    Balance:
    148,565Coins
    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    That makes no sense, please see my previous comment and provide actual context, so others can understand what you are trying to convey.
    Last edited: Nov 18, 2023
  6. herve069

    herve069 Simracer

    Joined:
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    Occupation:
    workshop instructor
    Location:
    France
    Balance:
    - 16Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    2DOF
    If I am not on the seat, it pushes forward on the braking phase. On the other hand, when I am in my seat, the engines seem to be struggling. 2x120w are insufficient?
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Innovative tech specialist for NGOs
    Location:
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    Balance:
    148,565Coins
    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Basic motor specs without context, such as the rig design being used, does not allow a definitive answers, try these apps to get a handle on design Vs physics trade offs, and please post details and pictures of your rig, along with all hardware used and any settings:

    Motion Visualizer: https://www.xsimulator.net/community/faq/motion-visualizer.389/

    SimCalc: https://www.xsimulator.net/communit...e-linear-speed-and-forces-of-your-design.270/
  8. herve069

    herve069 Simracer

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    Occupation:
    workshop instructor
    Location:
    France
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    - 16Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    2DOF
    Ok, thank you. I'll try to take time to do this afternoon. But motors are under my seat, not behind like your motion visualizer.
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    148,565Coins
    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    The programs let you configure to what dimensions you have used.

    But if you have a compact design with little inherent design leverage then like 120w motors are inadequate. Please start your own build thread and detail all aspects of your rig, that way there is some context for members trying to give advice ad assistance.
  10. herve069

    herve069 Simracer

    Joined:
    Mar 25, 2021
    Messages:
    38
    Occupation:
    workshop instructor
    Location:
    France
    Balance:
    - 16Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    2DOF
    Hi guys!
    I'm back with some little changes... I replaced ma 2DOF seatmover by 4 SRT80 from @Lebois Incredible update!
    But now I really need motion compensation!
    I'm using Simtools 3, but I don't find informations about Motion Compensation with OpenXR and Simtools 3... I'm using a Reverb G2.
    Is there any solution? I don't really want to use FlyPT, it's not really familiar with this soft.
  11. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    21,145
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    148,565Coins
    Ratings:
    +10,902 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Your request would likely best be made on the dedicated SimTools v3 threads, to ensure devs see it: https://www.xsimulator.net/community/threads/simtools-v3-public-beta.17329/