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Homemade Attraction Simulator

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Joey Bennett, Sep 5, 2020.

  1. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
    2DOF, AC motor, Motion platform
    The most important thing in an attraction simulator is the motion base. While many dislike Universal Studio's simulator attractions I enjoy quite a few of them! And I want to take this technology home to build an immersive attraction in my own home! I have done some research on what I would like to create.

    At first I thought a 4 person ride vehicle would be great and I would love to build a 4 person vehicle, but all that comes to mind is weight. The amount of weight that would be on the platform for motors would be too much for a home build. So, I thought a 3 person ride bench would suffice. Ideally I would like the ride bench to hold 3 adults. If each adult is 200 lbs then 600 lbs would be the weight capacity. As I stated before, the car would be a bench with walls on either side to block vision. I found this little wooden crate at target which is similar for how I want the car to look.

    [​IMG]

    An effective design indeed, however this means the actual base would have to be a rectangle. Could that work?

    Now onto the base. As much as I would love to use wood to build a motion base I know steel would be best for durability. The movements I want for this vehicle are smooth, exaggerated movements. I want the guests to feel incredibly immersed in whatever they are watching. I wanted to do a 2 DOF motion platform similar to what you see in these videos.







    The 2 DOF seems cheaper and easier to manage, but the more I look at 3 DOF the more I like it!

    This was a lot I blurted out and it may be confusing to understand what I am asking, so here are my main questions:

    What torque do I need to move 600 lbs smoothly and efficiently? I found an AC motor with 65 Nm torque, would that work?

    If it is a 3 DOF system, could the torque be less because you have 3 motors working at once? How might I understand the distribution of weight? Does it matter?

    What would you guys like to ride that would make you feel immersed, a 2 DOF or 3 DOF?

    And finally, where should I begin? Should I make a model on the computer? What program should I use? Or should I take some measurements of how big I want the ride vehicle and start building a steel base?

    If you made it this far, I can't thank you enough for your time! Hope all is well!
  2. Ads Master

    Ads Master

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  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Last edited: Nov 26, 2020
  4. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
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    Thank you for this!!! The 2DOF does seem much easier, especially for an inexperienced builder like myself, but the basic motion with a large screen should be immersive enough!

    I’ll take a look at the calculator to see what I can come up with and how to build it! Thanks again!
    Last edited by a moderator: Nov 26, 2020
  5. Joey Bennett

    Joey Bennett New Member

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    2DOF, AC motor, Motion platform
    After some consideration, I thought about using pneumatic cylinders for a 3DOF. They are cheap, and have a payload of what I’m looking for! The only problem I have now is how to control them? Would it be possible to control speed and position? Could I control this with an arduino? Mostly I came here to see if this was a stupid idea or not. It seems promising for sure! Would you know anything about this?
    Last edited by a moderator: Nov 26, 2020
  6. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    It is possible: https://www.xsimulator.net/community/threads/6dof-with-pneumatic-actuators.11373/#post-147264

    But there are downsides in terms of complexity, imprecise control compared to alternatives, plus pneumatic actuator are noisy.
  7. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    • Like Like x 1
  8. Joey Bennett

    Joey Bennett New Member

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  9. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
    2DOF, AC motor, Motion platform
  10. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    DC motor, AC motor, Arduino, Motion platform, 6DOF
    IMO. AC servos are what you want. I have tried two people on my current sim and the motors handle it easily.
    • Winner Winner x 1
  11. adgun

    adgun Active Member

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    Because air compresses it,s allmost inpossible to get position, fast valves are expencife
    and still very slow it give a low resolution becauce off this
    It,s old school ,electric motors are it these days in industry
    Sorry for the bad english
    Ad
  12. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
    2DOF, AC motor, Motion platform
    I’ll have to look into those, I changed my design a bit to create a cabin that will hold 4 people. Similar to star tours. My three big concerns are payload, smooth motion, and ease of programming. Do you recommend a certain brand or control system?
  13. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
    2DOF, AC motor, Motion platform
    Electric does seem easier and requires less maintenance.
  14. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    They will easily do all that and are not really that expensive for what you get, as they normally come with a match driver, positioning system (encoder) already fitted to the motor and can be powered often directly from your house power. They can be also easily controlled by the Thanos controller, or now a few other options. All directly compatible with Simtools and a few others. For what you want to do, really your only option. You will of course need a suitable gearbox of some type, to take all that weight, which are not cheap, but what you are building was never going to happen on a small budget.
    Last edited: Nov 26, 2020
  15. Joey Bennett

    Joey Bennett New Member

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    My Motion Simulator:
    2DOF, AC motor, Motion platform
    That’s very true, I just want to save money where I can. I’ll look at AC servo motors as they seem to be exactly what I’m looking for! Especially connecting to house power. I’ll browse the internet and see what I can find. Your help really means a lot!