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Showroom Motorcycle 4 DoF Motion sim

Discussion in 'DIY Motion Simulator Projects' started by Chris_Beeves, Sep 10, 2021.

  1. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    video pls
  2. kalbasator

    kalbasator Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino, Motion platform, 4DOF
    Good afternoon! I enjoy following your project.
    My assembly https://www.xsimulator.net/community/threads/mobile-platform-tl-catopult.17175/, in terms of the arrangement of motors, is somewhat similar to yours, and there is also a problem with the load on the motors. It will not be difficult for you to tell in more detail about "M-struts" (how are they arranged and where did you order them?)
  3. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Fixing the front meant that the struggle in the rear became more noticeable. So I bought another strut!
    upload_2022-9-7_19-2-55.jpeg

    The struts are called LMS2815230 and are pretty much springs in a tube.
    Mine are something like 420N per spring fully compressed.
  4. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    I ordered them from fjadrar.se , a danish company.
  5. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    I upgraded the force feedback from the buggy stm esc1 to Roman’s odrive FW the other day, and it really lifts the experience! The steering is not what I want it to be still, but I really enjoy feeling the front tire again! It works extremely well.

    Also, I entered a championship to get myself on the bike more. It has given me a lot of hours of testing which I wouldn’t have done otherwise. I’m really feeling like I’m getting somewhere with the motion profile.
    Finding compromises that work for a motorcycle in VR is not easy. The littlest detail can really mess with the VR legs, but I have had a lot of progress the last few days.
    And the ‘knee-down-rumblers’ are finally back in business! I love them, but they need some kind of mechanism so they only work when you actually put your leg out.
    • Like Like x 1
  6. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Had a friend over the other day to try out the rig. His reaction to the full VR experience was great!
    However the current gear shifting mechanism, which is a carryover from one of my earliest projects that has survived unexpectedly long failed in turn one. So I finally took the time to test one of my ideas. The linkage still needs to be sorted.
    upload_2022-9-17_9-26-22.jpeg

    I also took the time to write make a lite motor temp monitor system. The problem has been pretty much solved with the springs, but I thought it would be nice.
    It shows the current temperatures and the measured maximum.
    upload_2022-9-17_9-27-51.jpeg
    • Like Like x 1
  7. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    does the temp recorder use themisters ?
  8. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    It has DS18B20 sensors.
  9. biyajie00638

    biyajie00638 New Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, 6DOF
    I want to make a 2dof motorcycle simulator, is it possible?
    Last edited by a moderator: Sep 23, 2022
  10. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
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    Yes, go for it
  11. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    The gear switch thing worked great! The wiring side could have been a bit more tidy though, and the mounting was a pain. The coolest part was the print-as-one ball joint for the gear lever. Fun!

    Now I am working on a new steering concept which will have to do as a compromise until PiBoSo gets the directsteer function working again on GPbikes.
    • Like Like x 1
  12. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Shot a short video of the rig in motion. Nothing fancy, but gives you an idea.
    The leaning, or lack of it and why leaning the right way is wrong, I'll try to explain in another video.. ;)

    • Like Like x 1
    • Winner Winner x 1
  13. superwhitewish

    superwhitewish New Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    111.jpg

    I just wonder what if these rigid links are replaced with air springs.
  14. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
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    Why would you want to do that?
  15. superwhitewish

    superwhitewish New Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    So that you can lean the sim with your weight and at the same time feel the motion feedback from the motors.
  16. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
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    Lean is not an input, it’s an output. It is the product of handlebar and weight transfer inputs.
  17. superwhitewish

    superwhitewish New Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    Owh... sorry. I always though it's the rider that has to lean the motorcycle to counterbalance centrifugal & gyroscopic forces (sway as in simtools output).
  18. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Working on torque sensing handlebars to explore making a more natural steering system.

    As it is now I can choose between;
    • Steer left to go left
      - Completely unnatural to me, and a dangerous reflex to learn

    • Steer right to go left
      - When initiating a turn it feels quite nice and the force feedback gives a nice feel, but continuously steering the ‘wrong’ way in a turn just isn’t right..

    • Directsteer
      - PiBoSo’s hardcore steering mode with all aids off and 1:1 ffb control of the handlebar angle was what made me try the game from the beginning, but the code just isn’t good enough as it is right now, making it extremely extra difficult

    • Torque steer
      - The new concept of emulating countersteering with some semi clever arduino coding. First test are promising, but there’s still a long way to go.

    upload_2022-11-26_7-52-4.png

    How would you guys want a bike sim to steer? (Don’t say by leaning it ;) )
  19. Chris_Beeves

    Chris_Beeves Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    There is of course the “swivel type” steering like iasystems use on their HS controllers. It’s probably the best option for something like an arcade machine since most people can relate to the lean type control and learn how to use it quite quickly.
  20. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    does your sim not lean ?

    can you put load cells under the actuators or handlebars and measure the weight transfer left to right ?