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Question A beginner dreams of 2DOF

Discussion in 'DIY Motion Simulator Projects' started by Виталий, Jan 4, 2021.

  1. Sam Neall

    Sam Neall Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    Our scripts might be different. It you bridge pin 8 to ground it should change the baud rate without editing code.
  2. Виталий

    Виталий Member Gold Contributor

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    My Motion Simulator:
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    Tell me where to find another version of SimTools? All my searches have led only here
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    If you go to that link and click on Version History you will see all options. That said it is advisable to use the latest version of SimTools, and go back and check all hardware and settings.

    Versions.jpg
    • Like Like x 1
  4. Виталий

    Виталий Member Gold Contributor

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    Thanks a lot for the tip! I tried to install SimTools v2.5. The axles are aligned. Even Output Testing stopped shaking motors. They move smoothly to the end.

    The next step is to build the body of the simulator.
    I took the design from this Brazilian friend as a basis, only with the introduction of my own small changes.
    The motors will be located under the seat back.
    2DOF-ESTUDO ESTRUTURA.jpg
    I am planning on using a converted computer seat. Later I will make a homemade racing seat out of plywood. There are drawings.
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Glad you got that sorted :thumbs

    Keep in mind that that the more compact design, that it the shorter the distance from the pivot to where the motors connect, the greater the torque required to drive it and the harder the motors work. Wiper motors are not very powerful, so you want as much inherent design leverage as you can, in other words the biggest distance you can get between the pivot and where the motors connect.

    You can have a play with SimCalc to get an idea of design Vs physics compromises: https://www.xsimulator.net/communit...e-linear-speed-and-forces-of-your-design.270/
    • Like Like x 1
  6. Виталий

    Виталий Member Gold Contributor

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    Hello! I'm not lost, it's just that at this stage the process went slower.

    What was done: bought an old office chair. Disassembled, thoroughly cleaned and sewed new upholstery. I like it.
    20210205_202928.jpg
    Prepared shaped tubes and marked welding points.
    20210205_200349.jpg
    But welding turned out to be more difficult. Such work is expensive for welders. Therefore, I decided to add money and buy myself a new welding machine. I have long dreamed of such a device. Just a great excuse.
    20210205_200913.jpg
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  7. Виталий

    Виталий Member Gold Contributor

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    My Motion Simulator:
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    Body parts welded
    16126353168771062522980.jpg
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  8. Виталий

    Виталий Member Gold Contributor

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    I'm going to the final line. It remains to tidy up the wiring and place the boards in the box.
    20210208_204114.jpg 20210211_213527.jpg 20210212_160913.jpg
    • Like Like x 2
  9. Виталий

    Виталий Member Gold Contributor

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    Friends, advice is needed. What cable to connect to a PC? On my Arduino Uno there is a micro USB connector. This connection looks unreliable and not solid. Maybe use some kind of adapter? How did you do it?
  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Sounds like a clone Arduino, so you will have to use the micro USB cable.
    • Like Like x 1
  11. Виталий

    Виталий Member Gold Contributor

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    My Motion Simulator:
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    Done! Please welcome!

    Attached Files:

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  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Great to see your rig in action, well done :thumbs
    • Like Like x 1
  13. TL1000S

    TL1000S New Member

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    My Motion Simulator:
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    I just use nano (using ch340), everything is normal, no problem.
    • Like Like x 1
  14. Виталий

    Виталий Member Gold Contributor

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    The next step is to add vibrodynamics to the device. Without the sensation of vibrations from a running motor, it's somehow boring. I've done it before in my regular seat. This should add more experience.
  15. Виталий

    Виталий Member Gold Contributor

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    My Motion Simulator:
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    Added a little vibration to the device. This is not a bass shaker, but it does provide a certain experience.
    20210228_153836.jpg
    To connect, I built in a 12 V jack for connecting a homemade amplifier with a low-pass filter.
    20210228_153903.jpg
    The amplifier itself was attached with ordinary clamps to the underside of the seat
    20210228_154925.jpg
    And the vibro speaker fits perfectly between the plywood sheets. Right under the buttocks.
    The result is a spy stealth installation. ;)
    It would be nice to install the same in the back. But so far I have only one speaker.
    • Like Like x 1