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Budget Compact 6DOF Universal VR Flight / Racing rig - MSFS, SMC3, FlyPT, Transducers, Controls

Discussion in 'DIY Motion Simulator Projects' started by Ronan Design, Oct 11, 2024.

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  1. Map63Vette

    Map63Vette Member

    Joined:
    May 19, 2016
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    Lawrence, KS
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    Not super helpful for you at this point, but this was one reason I planned my next build with the Sabertooth/Kangaroo motor controller combo. They have an auto tune feature for PID that can really help with this. I originally built a simple 2 DOF setup using wiper motors and JRKs and took my best shot at tuning the PIDs. I had a problem where after driving for maybe 5-10 minutes one motor would thermally cut out and shut down while the other kept working. I swapped the JRKs over to a Sabertooth/Kangaroo setup just to see how they worked and almost like magic I could drive and fly for a long time and my motors weren't even that hot. Same exact rig and mechanics, just different motor controllers, so I would agree that tuning is probably your biggest heat issue. Unfortunately I don't have any good advice on how to fix it though as I took the "easy" route of buying something to do it for me, lol.
    Last edited: Jan 29, 2025 at 20:35
    Map63Vette, Jan 29, 2025 at 16:07
    #121
  2. Ronan Design

    Ronan Design Roman Design - Custom MSFS Scenery

    Joined:
    Jun 4, 2021
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    Web Designer, MSFS Scenery Designer
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    Toronto, Canada
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    1,565Coins
    Ratings:
    +111 / 1 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I shot the video with the first real flight test of the rig! I'm happy with it so far. I couldn't even feel the cogging during the flight because there's so much motion going on all the time. The motors heat up to ~46C max with new settings (lower PWMmax, added some derivative, slightly increased deadzone), then I adjusted the settings to yet lower PWMmax and they got even cooler. So I'm cautiously optimistic. Hopefully they would hold on during longer flights. More testing is needed, but it really felt nice! I will adjust the FlyPT profile to near perfection and I'm set.

    • Winner Winner x 3
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    Ronan Design, Jan 29, 2025 at 20:29
    #122
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