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My dumb noobie questions

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by MikeG, Nov 11, 2014.

  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    A random ebay selection of race style seats has weights ranging from 12-20kg, so comfort and road car standards compliance both cost in terms of weight:

    http://www.ebay.com.au/itm/SAAS-BLA...=AU_Car_Parts_Accessories&hash=item27ebeb21d5

    http://www.ebay.com.au/itm/NEW-PROF...=AU_Car_Parts_Accessories&hash=item4874f8c42b

    http://www.ebay.com.au/itm/BLACK-SAAS-KOMBAT-SPORT-SEAT/181164825331?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20140106155344&meid=509783eeb1714b69964fc8bca6d462ea&pid=100005&prg=20140106155344&rk=3&rkt=6&mehot=pp&sd=171461779925&rt=nc

    http://www.ebay.com.au/itm/Pro-Styl...=AU_Car_Parts_Accessories&hash=item3394b2741c
    Last edited: Dec 7, 2014
  2. MikeG

    MikeG Member

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    yup that's more like my estimates from the look of them.
    Forgive me for my weight obsession but building the boat i have had to save every kilo i can. Maybe i take it a bit far but i even made 2 glass dunnies to save 30Kg :rolleyes:

    Don't tell the wife but i was measuring her bum to see how wide i need to make the seat. Her bum is a lot wider than mine is.:D
    • Funny Funny x 1
    Last edited: Dec 7, 2014
  3. bsft

    bsft

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    Looks like you may need to build your own actuators then to get the required lift.
    @SeatTime is designing something currently
    Ian at BFF has actuator plans as well.
    They will work out still cheaper t build than buy commercial and do the job you need.
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Now that is what I would call an obsession :grin
  5. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    DC motor, AC motor, Arduino, Motion platform, 6DOF
  6. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    I consider the Fanatec CSL seat expensive for what it is but if light weight is your aim it may have some design elements you could consider adopting for your custom seat build: http://www.fanatec.com/us-en/play-and-gaming-seats/csl-seat-us.html
  7. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    DC motor, AC motor, Arduino, Motion platform, 6DOF
    Not a bad idea, but I wonder how it would survive the stains of a body in motion?
  8. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
  9. value1

    value1 Nerd Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, JRK, Joyrider
    Seats in a (soccer) stadium are vandal proof and reduce to the max…
    Maybe not very comfortable but light.
  10. MikeG

    MikeG Member

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    SeatTime
    It will have to be a custom seat to incorporate the pitch axis pivots.

    Have been playing with some power and inertia calculators but some of it is a bit beyond me i was a bit shocked that the inertia calculations only came up with about 100w for the roll axis and less for the pitch, I probably got it wrong. I get the impression most of my other assumptions are close to correct. It will be difficult waiting till i can start getting the pieces fired up. I think the seat will have to move up my list of tasks so i can start a few tests once i have it.
  11. MikeG

    MikeG Member

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  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Interesting find @MikeG...a nice compact way of doing heave.
  13. MikeG

    MikeG Member

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    yes nice if it works.
    Heave for me is difficult with the seat pivot 400mm away from the base of the U shaped arm. It would require a heap of torque to move it fast enough. I have been researching belts to do it but they would need to be quite huge from the specs i have seen but then i may be reading those wrong. Was going to ask the belt people to see if they come up with numbers similar to what i have worked out, will wait till i get started to follow up on that.
    These things would be awesome for a g seat as well i think, only 1 servo for each panel.