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2000$ DIY Rotary 6-DOF Project

Discussion in 'DIY Motion Simulator Projects' started by Yahia Emad, Jun 15, 2022.

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  1. Yahia Emad

    Yahia Emad New Member

    Joined:
    Feb 17, 2021
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    8
    Balance:
    63Coins
    Ratings:
    +14 / 0 / -0
    My Motion Simulator:
    DC motor, Arduino
    Hi, so after two versions of my DIY belt drive wheel I had decided to start building a motion platform, at first I wanted to build a 2-3 DOF and then I got too excited and here I am building a 6-DOF.

    I started with many designs and developed a working model to test the motor controllers and play with it a bit.

    I decided to have a dropped-down CG to avoid the platform tipping over and increase stability.

    The structure of the simulator is made of 1.5mm thick 60x40 and 40x40 steel tubing.

    The motors are coupled with VRM30 25:1 worm gearboxes, to output around 35RPM.

    The crank arms are made by welding a 6mm laser-cut sheet metal plate to a 20mm steel rod machined to fit the gearbox.

    The rod links are made of 14mm threaded rods and 14mm rod end bearings.

    The wheel holder is placed connecting two columns of the simulators to increase leg room and increase the stiffness of the platform.



    upload_2022-6-15_15-1-11.png
    • Like Like x 1
    Yahia Emad, Jun 15, 2022
    #1
  2. Yahia Emad

    Yahia Emad New Member

    Joined:
    Feb 17, 2021
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    Balance:
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    Ratings:
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    My Motion Simulator:
    DC motor, Arduino


    Heave Test
    Yahia Emad, Jun 15, 2022
    #2
  3. Yahia Emad

    Yahia Emad New Member

    Joined:
    Feb 17, 2021
    Messages:
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    Balance:
    63Coins
    Ratings:
    +14 / 0 / -0
    My Motion Simulator:
    DC motor, Arduino


    heave and surge test
    • Like Like x 2
    • Winner Winner x 1
    Yahia Emad, Jun 15, 2022
    #3
  4. Gadget999

    Gadget999 Well-Known Member

    Joined:
    Dec 27, 2015
    Messages:
    1,937
    Location:
    London
    Balance:
    11,850Coins
    Ratings:
    +474 / 9 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    how many amps / volts / watts are the motors ?

    what do you use to control them ? are they servo motors ?
    • Agree Agree x 1
    Gadget999, Jun 15, 2022
    #4
  5. Yahia Emad

    Yahia Emad New Member

    Joined:
    Feb 17, 2021
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    Balance:
    63Coins
    Ratings:
    +14 / 0 / -0
    My Motion Simulator:
    DC motor, Arduino

    The motors stall current is 10A at 30V, they're bought used and according to my tests it should have a torque of at least 60-65N.m after the gearbox reduction.

    I use SMC3 software as low level controllers to control them and have each motor coupled with an industrial potentiometer.

    I used 3x 15A 24V (increased to 27.5V) SMPS.

    I used 3 Cytron MDD10A drivers each for a pair of motors all enclosed in a custom sheet metal electronics box.

    upload_2022-6-16_12-47-42.png
    • Like Like x 4
    Yahia Emad, Jun 16, 2022
    #5
  6. itsumairu

    itsumairu Active Member

    Joined:
    Dec 13, 2021
    Messages:
    202
    Occupation:
    Psychologist
    Location:
    Indonesia
    Balance:
    432Coins
    Ratings:
    +89 / 2 / -0
    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino
    the control box is so neat and clean. good job! I really want to see an action video.
    • Creative Creative x 1
    itsumairu, Jun 16, 2022
    #6
  7. Yahia Emad

    Yahia Emad New Member

    Joined:
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    Balance:
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    Ratings:
    +14 / 0 / -0
    My Motion Simulator:
    DC motor, Arduino
    Thanks, soon I'll post a test drive video once I get simtools working with the simulator and Asseto Corsa .
    • Like Like x 2
    Yahia Emad, Jun 16, 2022
    #7
  8. Yahia Emad

    Yahia Emad New Member

    Joined:
    Feb 17, 2021
    Messages:
    8
    Balance:
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    Ratings:
    +14 / 0 / -0
    My Motion Simulator:
    DC motor, Arduino


    Test Drive using asseto corsa and Flypt
    • Like Like x 3
    • Winner Winner x 1
    Yahia Emad, Jun 20, 2022
    #8