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Question Help! Suggestions on 1 motor 2 flap surge on moving sway

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Trigen, Jun 11, 2020.

  1. Trigen

    Trigen Active Member

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    Hi there chaps

    Ive drawn some inspiration from Seat-time and decided after some "inertia mode" testing with my 2 flaps (coined by BlazingH) that i wanted to try the moving sway system. Thing is though, i can get the flaps to move up with a roller system im going to do but im at a bit of a loss as to how im going to get surge in here. I need to move both flaps with 1 motor. My plan sort of was to have levers on the inside and use bowdens/rope attatched to the moving frame but i needed to go with the center plank design due to space.

    FIY its currently on 2 2020 profiles with PLA and grease while waiting for linear rails. Also need a lesser spring to load the worm gear. If you do this, go with a direct and ball nut for best results. Aint bad though.

    Any suggestions and ideas are most welcome.

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  2. Ads Master

    Ads Master

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  3. Gadget999

    Gadget999 Active Member

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    can you not use the other motors to tip the seat back and forth to simulate surge ?
  4. Trigen

    Trigen Active Member

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    Thanks but It would be like a seat mover and it just don't feel right. You need the flap pressure. I would say to anyone who hasn't tried it it's the single most impactful thing you can have in your sim.

    I dont have the option to move the whole flap/sway system on its own and have it be parasitic as Seat-time calls it. Though with the rollers it will be somewhat like that. May need to use elastic bands somewhere so it mixes with the surge

    I got a 2 dof on the rig too but I barely use surge in pitch.

    Is more finding how to link it all up so they move. I may need to use 1 for the sway and 2 for the flaps like a normal seat but I really want to avoid it
    Last edited: Jun 12, 2020
  5. Gadget999

    Gadget999 Active Member

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    then you will need a motor for each flap

    Seatime used powerful RC servos with some success
  6. Trigen

    Trigen Active Member

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    Cheers for taking the time to look at it. I got a bit more detailed pic from Seat-time in his build post that helped me out. Just going to make a moving top bar on a linear rail that pushes 2 wheels in and out, its also sloped for sway.

    I see i need quite a bit of torque compared to my normal flaps here. a lot of it is in the plastic vs 2020 profile and some is weight. Gonna stick another motor in unison there
    Last edited: Jun 12, 2020