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2dof motors shutting down

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Killertbone6, Sep 6, 2025 at 08:35.

  1. Killertbone6

    Killertbone6 New Member

    Joined:
    Aug 19, 2025
    Messages:
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    6Coins
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    +0 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    I just finished constructing my diy motion simulator, and everything seemed fine until i put a little bit of weight on it. I didnt even sit down in the seat, but just pushed a little bit on each side to test the strength of the motors. Both motors give out under even just a little bit of pressure, and then turn back on after closing and opening smc3. I also noticed that the motor drivers are very hot, but I have seen others use them with these same motors so I figured it would be okay? Here are my components:

    Arduino Uno
    24v 250w 75rpm wheelchair motors
    BTS7960 43a motor drivers (one per motor)
    24v 20a power supplies (one per motor)

    Let me know if there is anything that seems to be wrong with my setup. I am new at this so it could just be a common mistake on my part. upload_2025-9-5_23-34-38.png
    Killertbone6, Sep 6, 2025 at 08:35
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    21,717
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    151,937Coins
    Ratings:
    +11,061 / 56 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Can you please post pictures of your rig, and key design aspects, such as motor placement distance from the pivot, and lever CTC distance.

    Can you also please post pictures of your SMC3 settings running the Sine 'Out Mode' test.
    noorbeast, Sep 6, 2025 at 09:09
    #2