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Showroom 6 dof - Odrive - BLDC - New design

Discussion in 'DIY Motion Simulator Projects' started by Will974, Apr 19, 2020.

  1. Will974

    Will974 Member

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    Industrial Ingeenering Teacher
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    My Motion Simulator:
    6DOF
    Hello friends,

    After many hours of work due to some complications , i can present you now the first ready actuators of my rig. It is maybe the most smaller actuator in this type of conception , because i have used a 80 mm diameter round tube and space into the actuator was very very limited. I was forced to modify some fixations of the round tube to earn space but now it is OK !!!! It's a small victory for me :). Now i can go to the next step - Conception of the lower base. IMG_20200722_143745.jpg IMG_20200726_002532.jpg
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  2. Zanoroy

    Zanoroy New Member

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    That's great, congrats.

    With this design how many m2/s do you achieve?

    I'm not sure if I want to attempt the linear or worm gear design.
  3. Will974

    Will974 Member

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    My Motion Simulator:
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    Hi,

    With this design or i want to say with this BLDC motor (7030 Tr/min maxi) and this ballscrew 1605, we can have a linear speed maxi : 585 mm/s without loading. But in fact, 250 - 300 mm/s is largely enough for good sensation if i believe other people that have build a rig before me....

    The two is interesting, but i suppose that the gear solution is more difficult to build .... And i'm not sure that it is more efficient the direct coupling solution that me and many members use....
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    Last edited: Jul 28, 2020
  4. Will974

    Will974 Member

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    Hi,

    Just a short video to show you the first motion of my actuator :)
    It seems to work very well as you can see on the video. The noise that you can hear at the back it's the fan of my cisco PSU. I will find a solution for that problem later. You can also hear a noise when the actuator retracts at high speed. It seems to be a resonance of the ball screw due to the imperfection of the threated shaft .... i suppose that this noise will disappear when the actuator will work on loading. The actuator is OK now :)

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  5. Will974

    Will974 Member

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    My Motion Simulator:
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    Hi,
    After the linear actuator, it's time to build the lower base. I have add some modifications compared to the first 3d image. Base inf_construction.jpg ...Here a photo before welding....:) It's seems to be great ;)
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  6. PeterW

    PeterW alias Wickie

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    Hi Will!
    Looks super nice!! Love it.
    Dont forget to prepare something to fix your base to the floor!! You will defenetly need this!
    Wickie
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  7. Will974

    Will974 Member

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    My Motion Simulator:
    6DOF
    Hi ,

    Thanks :)
    I planned to add 6 feet (Vibration less ) under the base to fix it on the floor as you can see on the image. I hope that it will be enough to support strong motions of the six linear actuators.... And as you can, the three arms of the lower base will be removable to be transportable if necessary....

    Will Pieds base inf.jpg