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finished V1 of our Race Simulator

Discussion in 'DIY Motion Simulator Projects' started by hansvdm, Nov 8, 2023.

  1. hansvdm

    hansvdm Member

    Joined:
    Sep 21, 2023
    Messages:
    57
    Occupation:
    Freelance
    Location:
    leiden Netherlands
    Balance:
    107Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    This is our first step in creating a Racesimulator we can tranport. It is still to heavy but we first wanted to test if it is possible and if it could carry and move weigth of 160KG in total.

    used components

    Ardunio R3
    SaberTooth 2x32
    600 watt power supply (24Volt - 25 Amp)
    2 resistors Mdurian 100W - 4 Ohm
    2 motors 24volt-75 rpm 250 Watt
    2 Hall sensors
    Playseat F1 Pro
    Used Sketch and wiring Thanks @BlazinH

    The whole unit is lifted in the frame and secured with Safety Pins
    The two springs at the back compansate for the downforce of the have footpedals (200mm stretch out and 380NM) (watch you fingers

    Footmount for the chair

    Attached Files:

    • Like Like x 1
    hansvdm, Nov 8, 2023
    #1
  2. nnelsonn

    nnelsonn New Member

    Joined:
    Jun 13, 2023
    Messages:
    27
    Location:
    Germany
    Balance:
    307Coins
    Ratings:
    +9 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor
    Looks good.
    What are the resistors for?
    nnelsonn, Nov 8, 2023
    #2
  3. hansvdm

    hansvdm Member

    Joined:
    Sep 21, 2023
    Messages:
    57
    Occupation:
    Freelance
    Location:
    leiden Netherlands
    Balance:
    107Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    just to besure that when the motor generates current back to the powersupply things are not breaking down. It is recommended when you don't use batteries.

    from the SaberTooth documentation

    One major improvement in the third generation Sabertooth motor drivers is the addition of the Power outputs P1 and P2. These can be used with an appropriate resistor to dissipate the regenerative current generated when the device slows down or stops. This allows the use of power supplies without batteries or capacitors to absorb the regenerated energy. A calculator on the Dimension Engineering website will assist with choosing appropriate resistor packs. At least one of the power outputs should be configured as a voltage clamp when using a power supply.
    hansvdm, Nov 8, 2023
    #3
  4. nnelsonn

    nnelsonn New Member

    Joined:
    Jun 13, 2023
    Messages:
    27
    Location:
    Germany
    Balance:
    307Coins
    Ratings:
    +9 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor
    I understand. I have IBT-2 and no resistors. I use 24V power supplies. The most wirings, wich i saw in the forum, have no resistors.
    nnelsonn, Nov 8, 2023
    #4
  5. hansvdm

    hansvdm Member

    Joined:
    Sep 21, 2023
    Messages:
    57
    Occupation:
    Freelance
    Location:
    leiden Netherlands
    Balance:
    107Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    correct but the IBT-2 didn't work for me. During playing the game one of the engines stopped when moving fast from left to right and back. the only thing that helped was moving over to SaberTooth 32 everythings work like a charm.
    hansvdm, Nov 8, 2023
    #5
  6. nnelsonn

    nnelsonn New Member

    Joined:
    Jun 13, 2023
    Messages:
    27
    Location:
    Germany
    Balance:
    307Coins
    Ratings:
    +9 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor
    oh yes. i read, that the BTS make problems with 24V. I have adjustable power supplies als let that work at 18V. According to the datatasheet, 19V is no prblem, too, but all over them it can give problems.
    Sabertooth is the better decision there
    nnelsonn, Nov 9, 2023
    #6
  7. hansvdm

    hansvdm Member

    Joined:
    Sep 21, 2023
    Messages:
    57
    Occupation:
    Freelance
    Location:
    leiden Netherlands
    Balance:
    107Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I tried with lower voltage between 18 and 22 volt. Same result, one of the motors stops without any cause. Exactly the same setup with SaberTooth, no problem
    • Useful Useful x 1
    hansvdm, Nov 9, 2023
    #7