1. Do not share user accounts! Any account that is shared by another person will be blocked and closed. This means: we will close not only the account that is shared, but also the main account of the user who uses another person's account. We have the ability to detect account sharing, so please do not try to cheat the system. This action will take place on 04/18/2023. Read all forum rules.
    Dismiss Notice
  2. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Now a Download Plan!
  3. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  4. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant. Do not follow these rules can lead to permanent exclusion from this website: Read the forum rules.
    Are you a company? Read our company rules

Pneumatic G-seat project.

Discussion in 'DIY Motion Simulator Projects' started by T R Para, Feb 17, 2020.

  1. T R Para

    T R Para i make stuff up

    Joined:
    Oct 18, 2018
    Messages:
    385
    Occupation:
    Retired
    Location:
    Cincinnati, Oh
    Balance:
    2,436Coins
    Ratings:
    +357 / 2 / -0
    My Motion Simulator:
    AC motor, 6DOF
    Hey @SeatTime yes they unfortunately are non linear, bang on/bang off...
    It seems the electrically operated linear air valves are about $1K a piece and those were used ones.
    Some quasi linearity actually exists with the GameEngines output.
    Very short peaks of duration never fully fills the bladders but many short bursts in a row will. My control board has the ability to adjust at what amplitude/threshold of the GameEngine the air solenoid fires at.
    The fill time on a full bladder is well under 1 second.
    which reminds me of my own bladder seeming to fill at all hours of the night !..

    so there is a small bit of linearity there...
    I did acquire several one way flow controllers that may possible be able to be incorporated but they are screw actuated adjustments and not easily incorporated..
    • Like Like x 1
  2. Sijmen

    Sijmen New Member

    Joined:
    Aug 9, 2019
    Messages:
    16
    Balance:
    131Coins
    Ratings:
    +15 / 0 / -0
    • Like Like x 1
  3. BlazinH

    BlazinH Well-Known Member

    Joined:
    Oct 19, 2013
    Messages:
    2,145
    Location:
    Oklahoma City, USA
    Balance:
    16,568Coins
    Ratings:
    +1,831 / 32 / -1
    That's the concept my Jiffy G-seat uses as well. Not only faster inflate/deflate but also more stable compression. And if you look at them in terms of being an actuator you can also give them more range. The Jiffy G-seat for example uses in excess of 30 air bladders.
    • Like Like x 1
    • Informative Informative x 1
  4. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
    Messages:
    2,233
    Location:
    Marseille - FRANCE
    Balance:
    20,875Coins
    Ratings:
    +2,079 / 21 / -2
    My Motion Simulator:
    2DOF, DC motor, Arduino
    you've made nice progress! thanks for sharing :)
    keep going