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Need help, smc3 settings

Discussion in 'DIY Motion Simulator Projects' started by Rumpelbube, Jan 20, 2025.

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  1. Rumpelbube

    Rumpelbube New Member

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    My Motion Simulator:
    2DOF, Arduino
    I am building a 2 dof system with 2 300w worm drive motors. 2 power supply's. 2 ibt2 motor driver, 2 hallsensor and an arduino. Motors do move. But I can stop them with 2 fingers. Can someone help me with the correct smc3 settings for my setup? I tried to figure it out for my self. But I don't get it.
    More details needed? Some photos >>>
    IMG_20250120_145851.jpg
    IMG_20250120_151341.jpg
    Rumpelbube, Jan 20, 2025
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    While the SMC3 settings may need a bit of refinement if you can stop the motors with 2 fingers I would suspect the IBT2s, grab a multimeter and test them.

    Try lowering Fpwm to 25.
    Last edited: Jan 21, 2025 at 02:25
    noorbeast, Jan 20, 2025
    #2
  3. burcin

    burcin New Member

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    My Motion Simulator:
    Arduino
    Same situation here with the same config, @Rumpelbube could you please share if you find a solution ? Thanks in advance and good luck
    burcin, Jan 21, 2025 at 00:32
    #3
  4. Joe Cortexian

    Joe Cortexian Member Gold Contributor

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    My Motion Simulator:
    3DOF
    Make sure nothing is getting warm. You should not detect any heat in the int-2 without load. Even with load very little.

    Maybe try a single PSU for a test. Should be robust movement even for an undersized supply.
    Joe Cortexian, Jan 24, 2025 at 15:37
    #4