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Showroom My rotary 6-DOF racing simulator project

Discussion in 'DIY Motion Simulator Projects' started by 毛大大, May 3, 2026.

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  1. 毛大大

    毛大大 New Member

    Joined:
    Mar 16, 2026
    Messages:
    12
    Balance:
    64Coins
    Ratings:
    +6 / 0 / -0
    My Motion Simulator:
    6DOF
    – here’s the current progress, and I’ll keep updating it go

    6DOF base frame, 5050 square tube, 4mm thickness

    upload_2026-5-3_12-32-54.png

    upload_2026-5-3_12-31-4.jpeg
    Reducer mounting bracket; I sprayed two coats of paint: one anti-rust coat and one finish coat.
    upload_2026-5-3_12-35-3.jpeg

    Frame assembly completed.
    upload_2026-5-3_12-36-31.jpeg
    upload_2026-5-3_12-36-37.jpeg
    upload_2026-5-3_12-36-50.jpeg
    upload_2026-5-3_12-37-4.jpeg
    upload_2026-5-3_12-37-10.jpeg

    Attached Files:

    • Like Like x 2
    • Winner Winner x 2
    毛大大, May 3, 2026
    #1
  2. accelero

    accelero Member

    Joined:
    Jun 30, 2015
    Messages:
    64
    Location:
    france
    Balance:
    293Coins
    Ratings:
    +12 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor, Arduino
    strong design......looking forward watching the rig in motion
    accelero, May 4, 2026
    #2
  3. Jon Amico

    Jon Amico Member Gold Contributor

    Joined:
    Apr 18, 2025
    Messages:
    98
    Balance:
    540Coins
    Ratings:
    +45 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Arduino
    What is it? A fill Size Alien Spacecraft 6 DOF? Looking sick... And Mean!

    Love it!
    Jon Amico, May 4, 2026
    #3
  4. 毛大大

    毛大大 New Member

    Joined:
    Mar 16, 2026
    Messages:
    12
    Balance:
    64Coins
    Ratings:
    +6 / 0 / -0
    My Motion Simulator:
    6DOF
    I've been quite busy with work lately, and I'm waiting for the processed upper platform to arrive.

    Attached Files:

    毛大大, May 11, 2026 at 14:56
    #4
  5. Garrett

    Garrett Member

    Joined:
    Mar 14, 2026
    Messages:
    56
    Balance:
    327Coins
    Ratings:
    +31 / 0 / -0
    My Motion Simulator:
    2DOF
    For best performance, you want the center of gravity over the top of the 6 motors.

    In the illustration above, it appears to have the cockpit a few feet from the center of the six motors.

    Unless you have insanely powerful motors, not sure that offset cockpit concept will work without extensive gas strut help.
    Garrett, May 12, 2026 at 19:38
    #5
  6. 毛大大

    毛大大 New Member

    Joined:
    Mar 16, 2026
    Messages:
    12
    Balance:
    64Coins
    Ratings:
    +6 / 0 / -0
    My Motion Simulator:
    6DOF
    Servo motor homing failed
    . Here are my servo parameters. I'm stuck, anyone can help?
    pn002 = 002 (Step/Dir control mode)
    pn003 = 001 (Servo enable)
    pn098 = 80 (Electronic gear numerator)
    pn109 = 002 (Position command deceleration mode)
    pn110 = 050 (Position command filter time constant)
    pn111 = 050 (S-curve filter Ta)
    pn112 = 050 (S-curve filter Ts)
    Homing:
    pn024 = 20
    pn033 = 3 (Power-on homing enabled)
    pn034 = 0/1 (Homing direction: 0=CW, 1=CCW)
    pn036 = 11 (Coarse position ×1000 pulses)
    pn037 = 5000 (Fine position)
    pn038 = 100 (Initial speed)
    pn039 = 100 (Return speed)
    https://www.youtube.com/shorts/NWRFQZ_7khw?feature=share
    毛大大, May 14, 2026 at 14:15
    #6
  7. Misanthrop

    Misanthrop Active Member

    Joined:
    Feb 5, 2024
    Messages:
    168
    Balance:
    1,006Coins
    Ratings:
    +71 / 1 / -0
    My Motion Simulator:
    6DOF
    Be sure you have the correct Driver Settings.

    Greetings from Yokohama ;)

    Attached Files:

    Misanthrop, May 15, 2026 at 02:14
    #7
  8. GettinBetter

    GettinBetter Magna Merchant Gold Contributor

    Joined:
    Jul 22, 2023
    Messages:
    129
    Occupation:
    CAD Engineer
    Location:
    Kent, UK
    Balance:
    746Coins
    Ratings:
    +86 / 1 / -0
    My Motion Simulator:
    AC motor, Motion platform, 6DOF
    Pn 37 seems high? 5000 is the same as adding 5 coarse steps.
    Away from home at the moment so can't refer to mine.
    @knaufinator has posted his settings which may be a good point to start cross referencing your settings.
    Looks great BTW, good work.
    Last edited: May 15, 2026 at 20:09
    GettinBetter, May 15, 2026 at 08:28
    #8