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2DOF for beginners

Discussion in 'DIY Motion Simulator Projects' started by Swiffty, Jan 20, 2021.

  1. Swiffty

    Swiffty New Member

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    Hi all, I have started to build a 2DOF, however I came to a problem when testing with motors... The issue is that the motors dont run when I turn the pot immediatelly, but roughly after a half of a turn on the pot. Also they turn only in one direction. Can anyone help/get some ideas of what could be wrong?
    I am using arduino uno, moto monster and 2 wiper motors. Loads of thanks
    Swiffty, Jan 20, 2021
    #1
  2. noSaint

    noSaint New Member Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi. Describe your setup a bit better.
    noSaint, Jan 20, 2021
    #2
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    noorbeast, Jan 20, 2021
    #3
  4. Swiffty

    Swiffty New Member

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    Here are some pics of the setup:

    Attached Files:

    Swiffty, Feb 16, 2023
    #4
  5. zapata_h

    zapata_h Active Member

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    My Motion Simulator:
    3DOF, AC motor, Arduino
    Have you checked that the potentiometer works correctly 0-5v?
    zapata_h, Feb 16, 2023
    #5
  6. Swiffty

    Swiffty New Member

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    Yes, the pot is correct, hower i have found an cable that was burned, like whole and cut, so I changed it and it works, but not correctly... roll is ok, but pitch is the same, i have tried to change also the "red" button for opposite directions, but always the same as roll when I move the slider...
    Swiffty, Feb 16, 2023
    #6
  7. Mattlekim

    Mattlekim Member

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    My Motion Simulator:
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    I had the same problem on mine. No matter what way I turned the potentiometers the motor turned the same way. Tuned out to be a short and a bad 5v solder.

    Check your soldering / connections.

    Also you apply the voltage directly to the motor to test them out. I ended up doing that to make sure that wasn't the problem
    • Informative Informative x 1
    Mattlekim, Feb 17, 2023
    #7