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My air-g-force prototype based on sfx 100

Discussion in 'DIY Motion Simulator Projects' started by wingert, Mar 12, 2021.

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  1. wingert

    wingert Active Member

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    My Motion Simulator:
    4DOF
    have done modification with a second switched valve to vent bags faster, respectively to have in middle position both sides guaranteed vented.
    dobble_valve1.jpg dobble_valve.jpg
    • Like Like x 1
    wingert, Apr 7, 2021
    #21
  2. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    can we see vid of it all working pls
    • Agree Agree x 1
    Gadget999, Apr 7, 2021
    #22
  3. wingert

    wingert Active Member

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    • Like Like x 2
    wingert, Apr 7, 2021
    #23
  4. Gadget999

    Gadget999 Well-Known Member

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    ok i understand what is going here - the piston volume is greater than the bag volume

    looks like it works pretty good :)
    • Informative Informative x 1
    Gadget999, Apr 7, 2021
    #24
  5. Icebeat

    Icebeat New Member Gold Contributor

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    what hose diameter are you using? how about the Tube Fittings, any brand? I have a similar setup and my problem is air leaking.
    Icebeat, Apr 7, 2021
    #25
  6. wingert

    wingert Active Member

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    My Motion Simulator:
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    hose diameter is 8mm, ordinary fittings from ebay no special brand. This is a open system puts atmosphere pressure to each cylinder side, refill it, in every middle position.
    • Like Like x 2
    wingert, Apr 7, 2021
    #26
  7. wingert

    wingert Active Member

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    My Motion Simulator:
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    have built a another version no external valves, using 3D printed tubes with venting holes in the middle.


    20211104_104345.jpg 20211104_104345.jpg 20211104_104305.jpg 20211104_104245.jpg
    • Like Like x 3
    • Creative Creative x 1
    wingert, Nov 4, 2021
    #27
  8. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    did you make your own cylinders - did you use the old pistons ?
    Gadget999, Nov 4, 2021
    #28
  9. wingert

    wingert Active Member

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    • Like Like x 2
    wingert, Nov 4, 2021
    #29
  10. wingert

    wingert Active Member

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    My Motion Simulator:
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    I have expand it to simulate acceleration with 2 pads in backrest.
    • Like Like x 2
    • Winner Winner x 1
    wingert, Nov 15, 2021
    #30
  11. wingert

    wingert Active Member

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    My Motion Simulator:
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    just a seat update

    seat_2.jpg
    • Like Like x 2
    wingert, Jan 16, 2022
    #31
  12. wingert

    wingert Active Member

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    My Motion Simulator:
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    after a long period of testing and a split in a 3D printed tube, replaced with original tubes with tiny holes (4x3mm), given more boost. lateral_tubes4.jpg lateral_tubes2.jpg
    • Like Like x 2
    wingert, Dec 8, 2022
    #32
  13. Gadget999

    Gadget999 Well-Known Member

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    Where did you get the cylinders from ? Are they pneumatic parts ?
    Gadget999, Dec 8, 2022
    #33
  14. wingert

    wingert Active Member

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    • Like Like x 1
    wingert, Dec 9, 2022
    #34
  15. Terje Helle

    Terje Helle New Member Gold Contributor

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    My mind just got a little bit blown when I saw this.

    How do you feel it works? Have you any other motion on your rig?
    Terje Helle, Dec 9, 2022
    #35
  16. wingert

    wingert Active Member

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    My Motion Simulator:
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    it gives you a kind of pressure driving curves.
    Yes, a plattform mover SFX100 for suspension plus a front surge for braking, plus a airflow in back of seat for acceleration.Also for open cars a wind system for speed.

    sim.jpg
    • Like Like x 2
    • Winner Winner x 1
    wingert, Dec 10, 2022
    #36
  17. Rainer Stehl

    Rainer Stehl New Member

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    My Motion Simulator:
    AC motor, 4DOF
    I am trying to build one similar to yours, but only with 2 450ml pads per side.
    I don't know how thick is the piston of my 160x100mm cylinder.
    Could you please tell me where you exactly bore the 3mm holes from the middle.

    My thoughts:
    When I assume that the cylinder is 180mm wide and the hub is 99mm (that is what I am measuring at the end...theoretically it should be 100mm) the middle is at 90mm and the cylinder ends 40,5mm from the middle on both Sides.
    So I have to bore the 3mm holes at 40,5-1,5=39mm from the middle if I want to close the gap completely or 40,5-1,0=39,5mm if I want atmosphere pressure in the middle position.
    Am I right?
    Rainer Stehl, Feb 2, 2023
    #37
  18. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    I have been building my own air bag system over the last few days and have been testing it today

    It uses a single double acting pneumatic cylinder and a dc motor with a crank to actuate it back and forth. The motion is done using an arduino nano and SMC3

    The dc motor driver is an ibt2 and it has not been very sucessful so far. It keeps overheating and shutting down. I will swap it for a more powerful driver.

    There are 4 air bags, 2 on each side that are pumped up as the cylinder moves in and out.

    I will add a video and write up to my build thread soon
    Gadget999, Feb 2, 2023
    #38
  19. wingert

    wingert Active Member

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    My Motion Simulator:
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    in my case the bores are 20 mm from the middle point, but this depends from thickness of the piston.
    The best method is disassemble the cylinder, measure the piston, so this is anyway necessary for burring the bores.
    tube.jpg
    wingert, Feb 2, 2023
    #39
  20. Rainer Stehl

    Rainer Stehl New Member

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    My Motion Simulator:
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    Your work ist great! I am so happy that I found your thread: so much input.
    Rainer Stehl, Feb 3, 2023
    #40
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