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Showroom FlyPT - 6DOF Brushless DIY Actuators

Discussion in 'DIY Motion Simulator Projects' started by pmvcda, Aug 29, 2017.

  1. pmvcda

    pmvcda aka FlyPT

    Joined:
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    Portugal
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    My Motion Simulator:
    6DOF
    Covering the sides might reduce noise.
    But it's not as loud as it seems on the video.
    Camera microphone and eco in the garage amplify the sound.

    Rotating actuators are way more silent.
    If you live in an apartment, you might prefer it.
    Also, it can be more compact with some powerful motors.

    Take a look at @Grigory rig, he made the opposite, going from linear to rotating: https://www.xsimulator.net/communit...ct-and-no-linear-actuators-220v-servos.11839/
  2. Gabor Pittner

    Gabor Pittner Member Gold Contributor

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    My Motion Simulator:
    6DOF
    I made a big mistake when i chosed 24V DC motors with sabertooth controllers and worm gearboxes to build a 6dof motion rig. My motors are very powerful 490W (100A peak current), they are very strong really, but not at low speed. I've been struggling more than a half year to set it smooth no succeded. I tried Arduino with SMC3, and I have an AMC1280USB board too, I tried to use gas struts as well. I thought all issues come from backlash, but don't. I realised motors are weak in low speed and they can stuck some milliseconds, that coses extremely jerky platform. So the best is using planetary gears and 220V servos, now I know it, but its very very expensive. I need more than 4000EUR to change motors, gears and controllers, dont want it :)

    But as I see @Grigory used the same 24V DC motors in his second project to linear actuators that he had used his first 6dof rig before. Those transtecno motors are week too in low speed I think. I believe in your stepper motors, they could be strong enough in low speed as well.

    But the key is using servo motors every kind of motion platform to build. Im sure.
  3. Gabor Pittner

    Gabor Pittner Member Gold Contributor

    Joined:
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    My Motion Simulator:
    6DOF
  4. pmvcda

    pmvcda aka FlyPT

    Joined:
    Nov 3, 2010
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    Location:
    Portugal
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    2,819Coins
    Ratings:
    +465 / 3 / -0
    My Motion Simulator:
    6DOF
    I have to find the file... I will take a look.