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Question No traction loss in Simtools v3, but works in smc3

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Nicki9knuckles, Dec 5, 2022.

  1. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    161
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    518Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    Hi again :)
    I am having trouble with my 3rd motor when trying to test my settings in simTools. Right now, when I go to SMC3 and test motion on the 3rd (traction loss) motor, i get lots of movement.
    But when I test motion in simTools for this motion which I think should be set as Axis3a traction 100%, I get no response from the motor.
    Is there a setting I am missing?
    I have my Interface output set to "[A<Axis1a>][B<Axis2a>][C<Axis3a]"

    Thanks!!
    Nick
    simtools-axis-settings.JPG simtools-interface-settings.JPG smc3-motor3-traction-loss.JPG
  2. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    161
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    518Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    Maybe the 3rd motor needs to be set under "B axis assignments" instead of A? They are all being controlled with the same arduino thoough so all on the same COMM. I am at a loss
  3. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    161
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    518Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    I got it!! And it was "user error" haha.
    If you look at the screen shot of my Interface i have:
    "[A<Axis1a>][B<Axis2a>][C<Axis3a]"
    Well, this should be:
    "[A<Axis1a>][B<Axis2a>][C<Axis3a>]"
    not the missing ">" for the 3rd axis. Oh man! I am so pumped haha.
    • Winner Winner x 1
  4. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    161
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    518Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    Oh man!! Traction loss adds SO MUCH more to the feeling of the car! The only thing I am finding now though is that in VR I move so much latterally that my game view almost goes out of the window of the car sometimes.
    I guess motion compensation would solve this, is this still the current method people are using for that:
    https://ovrmc.dschadu.de/
    ?