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2 dof with ibt 2 and smc 3 problems

Discussion in 'DIY Motion Simulator Projects' started by dope-walker, Jul 14, 2021.

Page 4 of 4
  1. titofe

    titofe Member

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    hello it will not be better to go on a Sabertooth Controller 2x32A 6V-24V, I no longer have the possibility of testing a card like this one, are there Arduino codes, I no longer use the iBT 2. please let me know if there are any paths to take, thank you friends
    titofe, Feb 6, 2025 at 19:14
    #61
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    When you say you lost everything what was it that you did and what specifically is the issue.
    noorbeast, Feb 6, 2025 at 21:55
    #62
  3. titofe

    titofe Member

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    hello when I say I have lost everything it is because even the first motor adjustment it no longer works it turns without stopping the green line on the potentiometer goes up it goes down it does not stop the engine between the red lines. I changed the two ibt 2 cards they are brand new the settings they do not take as soon as the engine turns the green potonciometer line it goes up quickly outside the red lines. Smc3 I reset everything to zero I started everything there is nothing that takes it's strange. I'm going to change my Arduino card. Thank you
    titofe, Feb 7, 2025 at 04:46
    #63
  4. Attyla.pl

    Attyla.pl Active Member

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    It is thought that you should use a typical Arduino Uno R3 board.
    Attyla.pl, Feb 7, 2025 at 09:56
    #64
  5. titofe

    titofe Member

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    Screenshot_2025-02-07-10-09-49-64_b5f6883d2c20a96c53babc0b4ac88108.jpg
    • Like Like x 1
    titofe, Feb 7, 2025 at 10:11
    #65
  6. titofe

    titofe Member

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    It won't be better a Sabertooth Controller 2x32A 6V-24V card. Thank you
    titofe, Feb 7, 2025 at 10:49
    #66
  7. Attyla.pl

    Attyla.pl Active Member

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    It depends, in principle with a 12V motor power supply the IBT2 bridges should work correctly , unless their quality has already declined so much that the new ones are already damaged. If I were you, I would buy an Arduino and once again calmly and slowly connect everything, it should work properly.
    Last edited: Feb 7, 2025 at 11:31
    Attyla.pl, Feb 7, 2025 at 11:16
    #67
  8. titofe

    titofe Member

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    understand what you're telling me, that's already 4 iBT 2 losing Arduino cards. the motors are 24 volts 160 w I lowered the power supply to 18 volts. I have the possibility of testing with a Sabertooth Controller 2x32A 6V-24V card, it will be better for both motors no what do you think Thank you.
    titofe, Feb 7, 2025 at 11:41
    #68
  9. Attyla.pl

    Attyla.pl Active Member

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    If you use 24V motors then you can use the controller from this thread without any problems:
    https://www.xsimulator.net/community/threads/reasonably-priced-100a-motor-controllers.17638/

    I use it myself, last week I built a 2DOF for a friend on such controllers and it worked without any problem .
    One note recently a colleague pointed out to me that the 100A driver bought on ebay platform had slightly better build quality than the same one bought on aliexpress. Although I bought on both platforms and so far they all work.
    • Informative Informative x 1
    Attyla.pl, Feb 7, 2025 at 13:09
    #69
  10. titofe

    titofe Member

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    titofe, Feb 7, 2025 at 15:13
    #70
  11. titofe

    titofe Member

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    titofe, Feb 7, 2025 at 15:14
    #71
  12. titofe

    titofe Member

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    I posted videos thank you
    upload_2025-2-7_15-15-48.png
    titofe, Feb 7, 2025 at 15:15
    #72
  13. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    For now I would suggest following the SMC3 instructions and tell us at what step anything goes wrong:
    1. Disconnect the motor power supply
    2. Make sure Simtools is not running – we’re not ready for that yet!
    3. Wire up the Arduino (with SMC3 installed) to your H-Bridges and connect to your computer via USB
    4. Run the Windows SMC3 Utility software and make sure it communicates with the Arduino (There is no need to set baud rates, they are not configurable)
    5. Set the Kp, Ki, Kd, PWMmin, PWMmax, PWMrev to 0 for ALL motors (This will make sure the motors don’t move)
    6. Set Clip to 255 (you need to do this first) and Limit to 255 (This will give you plenty of margin if something goes wrong while setting up)
    7. Turn on the power to your motors – nothing should move at this stage!
    8. Set Kp to about 400
    9. Now slowly, increase PWMmax… at some point the motor should start to move. When it does check the “Green” feedback line is moving toward the “Blue” target position.
      • If it is then that motor and feedback is wired correctly - proceed to test other motors.
      • If it is moving away turn off motor power immediately (or quickly reduce PWMmax again). In this case you need to either reverse the wires to the motor being tested –OR– reverse the +5V and GND wires to your feedback pot for the motor being tested (do not do both). Restart the test from the beginning.
    10. Do the above for each motor

    When SMC3 starts the pot should already be centered.

    What is happening in this part of the video, I can hear a clicking noise but have no idea what you are doing:

    Screenshot from 2025-02-08 07-08-21.png
    Last edited: Feb 7, 2025 at 22:39
    noorbeast, Feb 7, 2025 at 21:11
    #73
  14. titofe

    titofe Member

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    hello tomorrow I attack your proposal I follow them. at 47 seconds it's me who moves the potentiometer the green line to align it with the blue.
    titofe, Feb 7, 2025 at 22:19
    #74
  15. titofe

    titofe Member

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    I just got the Sabah.2×32 card back. I can assure you that I plugged it in and it does the same thing as with the ibt2 cards
    titofe, Feb 7, 2025 at 22:22
    #75
  16. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Here Max Limits is set to 0 and it does not look like the pot is centered, hence my suggestion to follow the SMC3 setup instructions to the letter, as a baseline:
    pot.png
    noorbeast, Feb 7, 2025 at 22:46
    #76
  17. titofe

    titofe Member

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    :cheers:thumbs
    titofe, Feb 8, 2025 at 05:00
    #77
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