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Question Motor motion question

Discussion in 'New users start here - FAQ' started by riki99, May 3, 2025 at 09:54.

  1. riki99

    riki99 New Member

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    My Motion Simulator:
    2DOF
    In sine wave measurements, when the axis of the motor goes up, it goes up normally, but when it goes down, it goes down quickly. What should I adjust?
    riki99, May 3, 2025 at 09:54
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    What hardware and code are you you using and can you please post pictures of all of your settings, as you have not provided nearly enough context to answer your question.
    noorbeast, May 3, 2025 at 10:00
    #2
  3. riki99

    riki99 New Member

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    My Motion Simulator:
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    Attached Files:

    Last edited by a moderator: May 4, 2025 at 10:28
    riki99, May 4, 2025 at 10:05
    #3
  4. riki99

    riki99 New Member

    Joined:
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    My Motion Simulator:
    2DOF
    riki99, May 4, 2025 at 10:08
    #4
  5. riki99

    riki99 New Member

    Joined:
    Dec 8, 2024
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    Location:
    korea
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    +0 / 0 / -0
    My Motion Simulator:
    2DOF
    riki99, May 4, 2025 at 10:08
    #5
  6. riki99

    riki99 New Member

    Joined:
    Dec 8, 2024
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    Location:
    korea
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    3Coins
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    +0 / 0 / -0
    My Motion Simulator:
    2DOF
    My system is unstable. I want to know the cause.

    Attached Files:

    riki99, May 4, 2025 at 10:11
    #6
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    21,506
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    150,656Coins
    Ratings:
    +11,018 / 55 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    There are a bunch of possible contributing factors.

    First, make sure the computer is set to English Local: https://www.xsimulator.net/community/faq/simtools-language-setting-bug-change-to-english-local.233/

    The SMC3 settings look like they need refinement, set Fpwm to 25kHz, at a guess increase Kp to 400 and for now set Kd to 0, then run the Sine test and post pictures of the results:
    [​IMG]

    There is also an error message when using SimTools, so hit Details and please post the full error message here, plus pictures of all SimTools settings.

    As an aside, the yellow U channel used as a a connecting link does not look robust enough and really should have spherical joints either end:

    [​IMG]
    noorbeast, May 4, 2025 at 10:39
    #7