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Issues with 2016 sketchup

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by marc79, Apr 11, 2016.

  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    We will help get you going, one way or another.
    • Like Like x 1
  2. marc79

    marc79 Member

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    @speedy can you assist me picking out the motors I will need?
  3. marc79

    marc79 Member

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  4. speedy

    speedy Well-Known Member

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    @marc79 ... Where do you want to use them ?
  5. marc79

    marc79 Member

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    I want to use them on 3DOF motion standing platform @speedy
  6. speedy

    speedy Well-Known Member

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    My Motion Simulator:
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    Any photo I can preview ?
    have you looked at my old simulator with 3-phase AC motors ?
    link is in signature aria ...
  7. marc79

    marc79 Member

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    @speedy I had paid someone on freelancer to work on the sketchup on it and CAD version because my brother in law works with metals, so he can built the frame for me. I should have the design finished in acouple of day, he will do the math also so I know what motor Ill need to get.
  8. speedy

    speedy Well-Known Member

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    My Motion Simulator:
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    Good luck then :thumbs ... my advice is to use 3-phase AC motors and VFD's :cheers
  9. marc79

    marc79 Member

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    ac motors can you tell me what specs, they will be used with VR @speedy
  10. speedy

    speedy Well-Known Member

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    VR = virtual reality ?

    edit : sorry I need to go to work or I'll be late :grin
  11. marc79

    marc79 Member

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    Yup VR Glasses Oculus Rift @speedy
  12. speedy

    speedy Well-Known Member

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    @marc79 ... I guess VR has no restrictions for what kind of motion simulation rig you're using thus motors
  13. marc79

    marc79 Member

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    reason why I ask is because I heard that if you do not match speed from heave, turns and twists you can get motion sick if its not sync with the simulated movements
    @speedy
    Last edited: Apr 27, 2016
  14. speedy

    speedy Well-Known Member

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    @marc79 ... Now I see ... first : the speed of heave, Roll, ... > is a mechanical issue you should take care of it at the design stage regarding putting the minimum load to the motor while maintaining the required final speed "No more, No less" ... the final speed is the real Heave speed that will lift "the full load" up ... and should be calculated backward regarding using reduction gears , pulleys , ... > then you can find the motor speed and power specs required .

    Second : matching the visual movements of the game to the simulated movements is actually depends on the controller you're using to get a sync simulated motion ... that's where you can get a motion sick if not well matched or tuned .

    let's say you have a slow "Not too slow" well tuned simulated motion to the game output ... then you'll get slow ups and downs and twists and turns exactly at the same time that is visually exists ... so you can't ever tell if there is a speed difference .

    On the other hand ... I have a very very fast Surge & Sway X-Y Flatbed simulator for racing cars that uses 2 screwball axis mounted directly to the output shafts of 2 1/4HP 3-phase motors ... It can literally hit my head to the steering wheel if I hit the wall in the game or something else goes wrong and that is a very annoying speed which is more than 30cm/sec. per axis ...

    the best Ideal speed is around 20cm/sec. or less .

    you need to know your motors specs by the mechanical design you have .