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Are these motors suitable for 3DOF?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by DanaC, Nov 6, 2024.

  1. DanaC

    DanaC New Member

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    My Motion Simulator:
    2DOF, 3DOF
    Hi community, can someone be so nice and take a look and let me know if these 3 motors would be suitable for making a 3DOF DIY motion simulator at home? I don't know what specific values to watch for and if these on one of the photos are suitable?
    Thanks in advanced!

    Attached Files:

    DanaC, Nov 6, 2024
    #1
  2. ProjectF1

    ProjectF1 Member

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    Jun 12, 2023
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    Occupation:
    Electrician
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    France
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    +16 / 1 / -0
    My Motion Simulator:
    AC motor, Arduino, 4DOF
    Hello, I think the output speed is not enough...
    • Like Like x 1
    ProjectF1, Nov 6, 2024
    #2
  3. Aerosmith

    Aerosmith Active Member

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    self employed
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    My Motion Simulator:
    3DOF, AC motor
    The cylindrical can on top of the terminal box makes me think that theese are single phase AC motors with start capacitor. They cannot be easily speed controlled. And as ProjectF1 already said, the gear ratio seems to be very high (~1:300) and the output speed very low (4.9RPM)
    • Like Like x 1
    Aerosmith, Nov 6, 2024
    #3
  4. DanaC

    DanaC New Member

    Joined:
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    My Motion Simulator:
    2DOF, 3DOF
    Thanks for your quick replies! You confirmed my suspicion. Can you take another look at this other motor if it is suitable which I found today and the price seems very acceptable. Thanks

    Attached Files:

    DanaC, Nov 6, 2024
    #4
  5. ProjectF1

    ProjectF1 Member

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    Occupation:
    Electrician
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    France
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    +16 / 1 / -0
    My Motion Simulator:
    AC motor, Arduino, 4DOF
    Hello Danac,
    no luck because the problem with this engine is its low torque! Have a good day
    ProjectF1, Nov 7, 2024
    #5
  6. Aerosmith

    Aerosmith Active Member

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    Occupation:
    self employed
    Location:
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    My Motion Simulator:
    3DOF, AC motor
    50W seems a bit low. I think the 150Nm is the peak torque of the gear before it breaks. 50W and 70RPM means only 6.8Nm continous torque.

    You should look for motors with at least 150W if your rig has weight support (gas springs or a U-joint in the center if you don't have heave) or at least 250W if it doesn't. An output speed of 30RPM means you can turn 180° in one second. A bit more is useful so 45 to 100RPM is good.
    • Like Like x 1
    Aerosmith, Nov 7, 2024
    #6
  7. DanaC

    DanaC New Member

    Joined:
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    Balance:
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    Ratings:
    +0 / 0 / -0
    My Motion Simulator:
    2DOF, 3DOF
    Thanks @Aerosmith for your insight - this make things clearer!!!
    DanaC, Nov 8, 2024
    #7