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Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

Discussion in 'SimTools compatible interfaces' started by RufusDufus, Dec 1, 2013.

  1. Ryuuken29

    Ryuuken29 New Member

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    Hi! I installed the pots on the motors but, now the green line has gone above the blue line. What should I dial in to fix it?
  2. Ryuuken29

    Ryuuken29 New Member

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    I meant the green line of feedback is above clip limit but, seems it's a POT related. I'm new to this software.
  3. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    more power on the motors? What happens if you test any motions in SimTools?
  4. Ryuuken29

    Ryuuken29 New Member

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    It was the pot position related to motor, so the clip limit relates to the movement of the feedback(green line), I'm stupid, didn't notice it. Problem fixed, just need to adjust the pot position. The motors are working with feedback :D
    • Like Like x 1
  5. DSSxSIM

    DSSxSIM Member

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    Awesome,
    hope you keep modify the recovery power, simtools's smooth function doesn't work at recovery after sway.
  6. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    hello DSSxSIM!

    you've already built your simpit and testing Simtools ?
    please share some pictures of your building :) we'd be delighted to see it

    yours
  7. DSSxSIM

    DSSxSIM Member

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    Hi there,
    I bought a ready-done set on Taoboo(like eBay in China),
    I'm trying to make one by my own, so I'm studying on x-sim and here,
    and found out the one I brought was built base on SMC3,

    My idea is making a motion platform that I can simpley put a none motion racing seat on it,
    still learning on which firmware, what motor should I use.
    e10b914904b0008df8b7e1fdc676039e.JPG 未命名-2.jpg
  8. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    I tried both softwares you're talking about: Simtools is the simpliest to use and very good with the biggest number of updated plugins!

    Never heard about "ready-done set"
    Could you please share the URL link? :)
  9. Historiker

    Historiker Dramamine Adict Gold Contributor

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    He means that he bought a ready to use simulator. :)
  10. Vaidotas

    Vaidotas New Member

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    Hello everyone,
    So I'm new here, and I have a little trouble setting my prototype, my first two POTS are interfering somehow... I'm using 7k POTS, maybe they are too small, I've readed that @rafael_design had this issue and wondering if it realy helps to get bigger POTS becouse the interference isn't gone anywhere...
    And by the way @RufusDufus you are genius!!! Your software is amazing! It made my life much easier!! Thank you so much!!!
    Thanks in advance
  11. RufusDufus

    RufusDufus Well-Known Member

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    It is unlikely the value of the POTs is the problem. Lower values are more immune to noise but will draw more current - not really an issue compared to what the motors draw.

    Post a video so we can see what the problem is.
    • Like Like x 1
    • Agree Agree x 1
  12. smaizys13

    smaizys13 New Member

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    Thank you for quick response! that's amazing!

    So as you can see in the video, either first or second POT i adjust it reacts in SMC3 for both motors, either it's first or second. Third motor works perfectly. I dont know maybe i'm missing something, and they have to react like that, (i know that they are bonded) but when I run both motors they starts to act not like they schould. By the way I just bought new biger POTS and nothig different happened.
  13. smaizys13

    smaizys13 New Member

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    This is what happends bet i run both of them, in SMC there is activated motor 2, but when I'm adjusting the first one, they both move....
  14. RufusDufus

    RufusDufus Well-Known Member

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    Sounds like the POTs are connected to the wrong motors?
  15. stevemontuno

    stevemontuno Active Member

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    I just wanted to say thanks for the great tutorial and utilities program ,,, Cheers @RufusDufus
    • Like Like x 1
  16. smaizys13

    smaizys13 New Member

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    Ok, I changed the POTS to differnet motors and nothing different happend, they still are acting strangely... It looks like they are bonded somehow. For exaple I turn on both motors (in picture they are off) and activate the first motor like in the picture below, but my both motors are moving, when they reaches the POT limits they starts to make noises....
    SMC3.png
  17. smaizys13

    smaizys13 New Member

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    Found the problem!!! analog pins on arduino vas conected by a mistake, i removed that snot between A0 and A1 and everything is working now wery well!
    12789914_1133769336643064_1231160805_o.jpg
    • Like Like x 3
  18. TL1000S

    TL1000S New Member

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    This is great! Thank you for sharing!
  19. Tim McGuire

    Tim McGuire "Forever a work in progress"

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    My Motion Simulator:
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    Hi,

    I've been trying to tune the PID loop running on SMC3, and I can't seem to get the Kd value to do anything...

    low Kd.png Ridiculous Kd.png

    On the left I have Kd set to a low value, and I'm getting overshoot in the step response of my sim. This is normal.
    On the right though, I have Kd set to it's maximum value, and I'm still not getting any damping of the motion in response to the squarewave. I can still change Ki, and Kp, and they behave normally. (Kp makes the sim move more sharply, Ki mostly just causes oscillations because there's barely any steady state error). I've tried changing it on both motors. Has anyone else had any problems with this? I'm using V0.7.
  20. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    @Tim McGuire as far as I can see your screen shots show me nothing special, the little overshoot is given by the hard movements of the SCM3 utility and later under "real conditions" hardly remarkable in the game.