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Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

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

Page 82 of 131
  1. Pramuuditha Kumara

    Pramuuditha Kumara Member

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    thank you very much for helpful information.
    Pramuuditha Kumara, Jan 13, 2019
    #1621
  2. Pedro Andres Pineda

    Pedro Andres Pineda Member

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    Hi,


    Great work with the SMC3.

    I'm working with the smc3 in mode 1 and now I can move my motors using the smc3tool.

    What must be the value for "Kp, Ki, Kd, PWMmin, PWMmax, PWMrev, and the others configs"?

    Do you have a manual or tutorial to calibrate or find the perfect value?

    Thank you for the help.
    Pedro Andres Pineda, Jan 14, 2019
    #1622
  3. Pedro Andres Pineda

    Pedro Andres Pineda Member

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    A last question: I can move the motors using SimTools. Do you have a standard values for this previous settings in SimTools?
    Pedro Andres Pineda, Jan 14, 2019
    #1623
  4. Pramuuditha Kumara

    Pramuuditha Kumara Member

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    Just check this one you will get some idea https://www.xsimulator.net/community/threads/my-simple-2dof-simulator.10714/
    Pramuuditha Kumara, Jan 15, 2019
    #1624
  5. Pramuuditha Kumara

    Pramuuditha Kumara Member

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    • Agree Agree x 1
    Pramuuditha Kumara, Jan 15, 2019
    #1625
  6. evolaco

    evolaco Member

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    Why does not KD affect one of my engines? the one on the right does affect him and I have managed not to bounce but the one on the left does not affect KD, I have reached 1000 and KS at 100 and remains the same, does that have a solution?
    evolaco, Jan 19, 2019
    #1626
  7. BlazinH

    BlazinH Well-Known Member

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    Are you using smc3 v1.0?

    Kd will have greater effect when Ks is 0.
    Last edited: Jan 19, 2019
    BlazinH, Jan 19, 2019
    #1627
  8. evolaco

    evolaco Member

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    I use the latest version, I tested ks to 0 and KD has no effect from 0 to 1000
    evolaco, Jan 20, 2019
    #1628
  9. Llewelyn

    Llewelyn Member

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    Simple things,but without it,big problems:)
    Llewelyn, Jan 24, 2019
    #1629
  10. Gabor Pittner

    Gabor Pittner Active Member

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    If somebody has an idea please help me....I've been struggling with PID settings for a long time. I can not get smooth at all with my rig, however I tried all kind of settings... Its almost good when kp under 80, but I lost speed and lots of detail of movement.
    I made two videos for it:

    Last edited: Jan 29, 2019
    Gabor Pittner, Jan 29, 2019
    #1630
  11. BlazinH

    BlazinH Well-Known Member

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    If you can't get smooth motion using Kp only with PWMmax at 255 then your issues are likely not PID related. Could be noisy pots, under-powered, bad geometry, etc.
    BlazinH, Jan 29, 2019
    #1631
  12. Pedro Andres Pineda

    Pedro Andres Pineda Member

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    I had a similar problem and I didnt find a configuration,but when I put some weight(one person) on the structures the platform worked smoothly(with the same speed), that indicated me that I must adjust the geometry in my platform.
    Pedro Andres Pineda, Jan 30, 2019
    #1632
  13. Pedro Andres Pineda

    Pedro Andres Pineda Member

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    I have my simtools sending the payload to the SMC using serial port, but I know that is possible send the commands using network. I made this and put the out mode in the SMC3 tool in UPD Pass thru.
    Now the simtools is sending the data to SMC3tool(using network) and the SMC3Tool sends the data to the platform and it works and I can see if the target and feedback are aligned.

    My question is: With this configuration(network) is the performance equal to simtools using serial?
    Last edited: Jan 30, 2019
    Pedro Andres Pineda, Jan 30, 2019
    #1633
  14. Gabor Pittner

    Gabor Pittner Active Member

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    I don't think so. This rig have been used with Thanos AMC1280USB board analog control it wasn't jerky at all. There are 24V 490W motors more than strong enough. Used Hal sensors for feedback never had problem with them. Several members made a rig in the same geometry. I think something wrong with delay maybe or i don't know. :( Could it be beacuse of sabertooth 2x32 serial timeouts? There is an infinity symbol on it in describe tool. :).
    Last edited: Jan 31, 2019
    Gabor Pittner, Jan 31, 2019
    #1634
  15. BlazinH

    BlazinH Well-Known Member

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    P in PID stands for proportional so the voltage applied to the motors using P only will be directly proportional to the input and should produce the smoothest motion on an unloaded rig. I and D gets added to P and do things to tweak the movement which can cause positive or negative outcomes.
    But the difference in AMC vs SMC3_SPS is AMC controls via a 5v signal and SPS via serial coms. So yes that's possibly where your problem is. In any case though you should be posting here when asking questions related to Sabertooth controllers and SMC3 as this thread is for supported H-bridges only. https://www.xsimulator.net/communit...ket-serial-pid-motor-driver-w-softstart.9277/
    Last edited: Jan 31, 2019
    BlazinH, Jan 31, 2019
    #1635
  16. Sam Court

    Sam Court New Member

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    Hi All,

    I am new here and new to this so i apologies if this has already been asked.
    I'm thinking of building a platform using linear actuators. Which mode would be best and would I still need to add a potentiometer to the circuit?

    Many thanks
    Sam Court, Jan 31, 2019
    #1636
  17. Arazok

    Arazok Member

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    Hi guys,
    do you know if we can get the source code of the SMC3Util (Windows) ?
    I would like to do some changes and maybe port it to Linux.
    Any idea ?

    cheers,
    Dirk
    Arazok, Feb 1, 2019
    #1637
  18. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Feb 1, 2019
    #1638
  19. Arazok

    Arazok Member

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    Yes, I found that too, but unfortunately it isn`t the code.
    Just the exe and ini file, so the executables but not the source ....
    Arazok, Feb 1, 2019
    #1639
  20. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Hmmm you are right, I have never downloaded it before and have always presumed it was the source, as it is clearly labeled source.

    I presume that means that only @RufusDufus has the source code.

    Update - I had a poke through the old comments and its seems the source is on a disused computer: https://www.xsimulator.net/communit...nd-windows-utilities.4957/page-66#post-132918
    • Like Like x 1
    Last edited: Feb 1, 2019
    noorbeast, Feb 1, 2019
    #1640
Page 82 of 131