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Question 2DOF+Arduino R3+ Sabertooth 2x32 First Start Up Issues

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by FoxHound.92, Oct 21, 2018.

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  1. FoxHound.92

    FoxHound.92 2DOF seat mover Gold Contributor

    Joined:
    Jan 11, 2018
    Messages:
    69
    Location:
    Germany
    Balance:
    38Coins
    Ratings:
    +30 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Well as I was about to post that de- and reinstalling has not been effective I thought I better try overall functionality again in SMC3.

    I now get this rattling when testing with any active profile when the motor has to lift the platform:


    Very disappointing together with the fact that I can't work on solving my issues constantly :(
    FoxHound.92, Nov 6, 2018
    #41
  2. FoxHound.92

    FoxHound.92 2DOF seat mover Gold Contributor

    Joined:
    Jan 11, 2018
    Messages:
    69
    Location:
    Germany
    Balance:
    38Coins
    Ratings:
    +30 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    The main problem is that I'm not sure where to look for it.

    For my understanding it may be caused by the potentiometers.

    I used Arduino jumper wires to connect them. I used two jumper wires in combination to have the right length.
    Can this maybe a weak point?
    FoxHound.92, Nov 7, 2018
    #42
  3. FoxHound.92

    FoxHound.92 2DOF seat mover Gold Contributor

    Joined:
    Jan 11, 2018
    Messages:
    69
    Location:
    Germany
    Balance:
    38Coins
    Ratings:
    +30 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino

    I'm glad to reply that I am one step further:

    Now the communication finally works after setting firewall and antivirus exeptions everywhere I could.
    Output testing works as well.
    Both are working great within SMC3 now, I tweaked the parameters until I got smooth motion (so far).

    I got rid of the wiggling by reducing the Kp value down to 100.
    One major problem for me was I misunderstood the SMC3-tool. I thought it was only for testing, not for setting the parameters as well.
    So at first I tried to use SimTools with PWMmax = 0. So it is no wonder it did not move, right? :blush
    FoxHound.92, Nov 11, 2018
    #43
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