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Universal 6DoF Recessed Simulator

Discussion in 'Commercial Simulators and Peripherie' started by RobsonSwiss, Jun 21, 2017.

  1. Rider63

    Rider63 Member

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    My Motion Simulator:
    AC motor, 6DOF
    I understand but I thinks the surface is not wide enough, but it's just my feeling, we will see.

    we wan't more picture ;)
  2. RobsonSwiss

    RobsonSwiss Active Member

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    You're wrong, the removable bends have about 12 cm/2 of surface area, the datasheet lists 214kg cm/2 lap shear strength, which is the way the bend was designed, so it's not possible to "peel" it loose, this is the same for all epoxy'd parts, they are all in either shear designs or in a combination of shear and peel, the bottom mounts for the actuators are like this, they have around 6 cm/2 of sheer surface per actuator with around 9 cm/2 of peel surface. Unfortunately the datasheet doesn't list typical peel strength so if we go by sheer only it will require over 1200kg of force to remove. The removable bends will be double that, at 2400kg, they run in tandem so that's 4800kg, the permanent bends are double that so 4800kg/9600kg. The supplier told me the aluminium would fail before the joint does and I didn't really believe him, thought it was just sales talk. But even if the joint is just 15% the strength of the datasheet numbers it's still significantly higher than required.

    ref: https://www.amtcomposites.co.za/sites/default/files/media/data-sheets/adekit-a140-h9940-gb.pdf

    Pics will come, I'm busy sorting out the flux capacitor.
    • Like Like x 2
  3. RobsonSwiss

    RobsonSwiss Active Member

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    Some pics:
    [​IMG]
    [​IMG]
    [​IMG]
    • Like Like x 4
  4. Nitros54

    Nitros54 Member

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    3DOF
    Hello, I see you have advanced on your simulator, you do an exceptional job, congratulations to you.
    • Like Like x 1
  5. RobsonSwiss

    RobsonSwiss Active Member

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    Some more pics:
    [​IMG]

    Busy with the base now:
    [​IMG]

    The platform looks like this:
    [​IMG]
    [​IMG]
    [​IMG]

    The dual platform universal joint.
    [​IMG]
    [​IMG]
    • Like Like x 7
  6. RobsonSwiss

    RobsonSwiss Active Member

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    Thank you!
  7. RobsonSwiss

    RobsonSwiss Active Member

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    Assembly is easy, probably about 4 hours to do solo, half that with a helper.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
    [​IMG]
    • Like Like x 7
    • Winner Winner x 1
    • Friendly Friendly x 1
  8. RobsonSwiss

    RobsonSwiss Active Member

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    Some manual movement testing:
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    • Like Like x 8
    • Winner Winner x 1
  9. Brett Horton

    Brett Horton Active Member

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    My Motion Simulator:
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    Don't turn on the ceiling fan when running lol
    Great job so far
  10. riton

    riton Active Member

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    I'm curious to see it on video
    • Agree Agree x 1
  11. RobsonSwiss

    RobsonSwiss Active Member

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    Lol, well I might have been cheating there and went to the mechanical limit instead of the limit switch, so it's 30mm higher
    • Like Like x 1
  12. RobsonSwiss

    RobsonSwiss Active Member

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    A few more wires to go
    • Like Like x 1
  13. Red_shift

    Red_shift Member Gold Contributor

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    Wow, great progress. Looking forward to a video :popcorn
  14. RobsonSwiss

    RobsonSwiss Active Member

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    It's coming very soon, some last updates to improve the stiffness of the platform happening and I'll upload it.

    Something else in the meantime, I've got some new drivers with much higher startup current, so I did a side by side, old driver on the bottom, new driver on the top.
  15. RobsonSwiss

    RobsonSwiss Active Member

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    Currently stuck in a motion controller black hole... But the platform is sorted, need to add the top bracing next and hopefully get some working AMC1280 code soon.
  16. Leo Burton

    Leo Burton Active Member

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    My Motion Simulator:
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    That rig looks awesome! Amazing work! Can't wait to see it in action! There's a lot of travel on that! Turbulence in flying games could be epic!
  17. RobsonSwiss

    RobsonSwiss Active Member

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    Thanks, I'm busy with a small gear reducer on the encoder, which is turning out to be quite tricky, finding local stock of miniature gears is almost impossible, couldn't get the AMC1280 to count multiple turns so for now I'll run a 4:1 reducer.
  18. Thanos

    Thanos Building the Future one AC Servo at a time... or 6

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    My Motion Simulator:
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    Hey Jonathan,

    Can you change the acceleration setting on your servo drives?

    By default my servo had 100ms ramp up down that was causing overshooting....

    • Like Like x 1
  19. chrissie

    chrissie New Member

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    RobsonSwiss, I have just seen your insecta tech website, your product looks very exciting. When will it be available?
  20. RobsonSwiss

    RobsonSwiss Active Member

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    Hi Thanos,
    Was 100ms too high?
    I had it set on 10ms, it was pretty damn fast, could only touch it very briefly with manual input and it would move 250-300mm, but it was probably the SSI encoders, I've pulled all the AMC1280USB related stuff already though, for now I'm working on a new solution.

    Almost done sorting out the motion, so, so close! I'll send out an announcement since there are a lot of upgrades on the chassis, electronics, electrics, actuators etc. that's been finalized while I've been struggling with the motion, so the "2018 version" looks a lot different and has a lot of improvements over the initial concept/design.