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3 DOF build (scn5 actuators) new project

Discussion in 'DIY Motion Simulator Projects' started by haroldjames, Dec 12, 2015.

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  1. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
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    they are pretty hard. we use them on equipment to carry a fairly heavy load on a turntable for wrapping skids. The insert bearing is a 6201-RS
    • Informative Informative x 1
    haroldjames, Dec 14, 2015
    #21
  2. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Any wobble on the front end ? like push down on either front corner and see how much deflection the frames have against each other.
    Nick Moxley, Dec 15, 2015
    #22
  3. haroldjames

    haroldjames Active Member Gold Contributor

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    The top frame sits solid on the lower frame. It move very smooth side to side. All wheels have bearings and the front pivot point is a timken cup and bearing. Most of the wieght will be centerd on the seat when you are driving making it even more stable.
    haroldjames, Dec 15, 2015
    #23
  4. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Thats not the question i asked, But ok.
    Nick Moxley, Dec 15, 2015
    #24
  5. haroldjames

    haroldjames Active Member Gold Contributor

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    If you push down it will tip. The solution to that if it a problem is to secure the front pivot piont so thete is no side play in the shaft that goes through the bearing. Is this what you are trying to make aware of, top being tippy? thx nick:)
    haroldjames, Dec 15, 2015
    #25
  6. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Correct, without supports like caster, i fear it will have a tendency to "wobble" if you press on either front corner. The problem isn't in motion per say but with your Steering wheel and fighting the wheel's feedback, the top frame will want to roll side to side adding pressure to the Front bearing and if there isn't support on either front corner is can have a "tippy/wobble" effect. I guess if you could somehow "load" that timken cup bearing exactly as you would on an Axle you might be able to prevent the problem, but In all honesty i think it'll still wobble a bit being as heavy and large as our rigs tend to be.

    This was my quick 20min fix for mine, Granted i dont have a Large Axle bearing as your using. but rather a 12" round lazy susan which has far more "surface area" to prevent the wobble, yet it still did.

    Front outside corner's
    [​IMG]
    • Useful Useful x 1
    Nick Moxley, Dec 15, 2015
    #26
  7. haroldjames

    haroldjames Active Member Gold Contributor

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    Thank you for the info. I will certainly take it under advisement. Your fix may work for me if its needed to stabilize the motion. thx Nick!
    haroldjames, Dec 16, 2015
    #27
  8. haroldjames

    haroldjames Active Member Gold Contributor

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    Well today I got the seat frame welded together and the u-joint mounted in place on the frame. I took a couple of pics of it.
    20151216_130531.jpg 20151216_130544.jpg
    • Like Like x 2
    haroldjames, Dec 17, 2015
    #28
  9. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Wow you must have some Serious Man Cave space to play with, That base is a Monster.
    Nick Moxley, Dec 17, 2015
    #29
  10. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
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    Yea, she is going to be faily big. lol
    haroldjames, Dec 17, 2015
    #30
  11. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
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    Got a little more work done today. Fabricated motor mounts for the seat.
    20151218_095156.jpg 20151218_112108.jpg
    • Like Like x 1
    haroldjames, Dec 18, 2015
    #31
  12. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
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    I have not purchased the scn6 yet for the traction loss. Could someone guide me on the one to buy. I did read that the scn6-020 is ok, but what stroke should it be. 100mm or 150mm. thanks
    haroldjames, Dec 19, 2015
    #32
  13. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    • Like Like x 1
    • Informative Informative x 1
    noorbeast, Dec 19, 2015
    #33
  14. haroldjames

    haroldjames Active Member Gold Contributor

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    thank you for the information noorbeast. i will check out all the options you listed.
    haroldjames, Dec 19, 2015
    #34
  15. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
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    Update: continuing to weld the frame pieces.
    20151221_122021.jpg
    haroldjames, Dec 21, 2015
    #35
  16. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
    3DOF, SCN5, SCN6
    Today I got my grandson to help with the frame. We decided to cut the frame in half and use joiners to put it back together. This will allow us to move the rig by disassembling it.
    20151220_135554.jpg 20151220_141119.jpg
    • Like Like x 3
    haroldjames, Dec 21, 2015
    #36
  17. insanegr

    insanegr !N$@n€

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    grandson is helping to get the rig done quicker but forgot to wear safety glasses:nerd
    insanegr, Dec 22, 2015
    #37
  18. haroldjames

    haroldjames Active Member Gold Contributor

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    No, If you look real close you will see he as on a set of plastic goggles. they are hard to see unless you zoom in. lol, you were not the first person to say that. :)
    • Like Like x 1
    haroldjames, Dec 22, 2015
    #38
  19. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
    3DOF, SCN5, SCN6
    I just looked at the posting myself and you cant see them there, but I swear he does have them on.
    haroldjames, Dec 22, 2015
    #39
  20. haroldjames

    haroldjames Active Member Gold Contributor

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    My Motion Simulator:
    3DOF, SCN5, SCN6
    Side frame now complete and rear mount with anti-vibration isolators.

    Attached Files:

    haroldjames, Dec 22, 2015
    #40
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