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6 DOF geometry

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by PaulB, May 5, 2019.

  1. PaulB

    PaulB Titanium2dof Gold Contributor

    Joined:
    Apr 15, 2017
    Messages:
    51
    Location:
    Canada
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    265Coins
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    My Motion Simulator:
    2DOF, DC motor
    Well I'm going all in. Going to build a 6 DOF Sim f1 seat. Still at the design stage and realized there are different geometry used. I'd like to know if what the advantages and disadvantages there are in: Programming, function, stresses, movement....
    Pictured are the options I've seen, there may be others.
    Feedback or info on the subject greatly appreciated!

    Thanks 6 DOF Geometry.PNG
  2. My.stAr

    My.stAr Member

    Joined:
    Sep 7, 2012
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    118
    Occupation:
    Engineer
    Location:
    Germany
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    My Motion Simulator:
    DC motor
    Hey @PaulB,

    you can find here some things I wrote in regard of the design:
    https://www.xsimulator.net/community/threads/basics-6-dof-stewart-platform.9396/#post-119948

    I wouldn't build design number 1 because of the stability. The momentum of the upper platform could tilt the whole rig.
    Also number 3 is a little bit difficult because of the angle between the actuator and the floor. The lower it is, the stronger motors you'll need…

    With design 4 you have less yaw, sway and surge than with number 2, but you'll have more heave;) It's up to you to decide what YOU want:)

    I hope that helps a little bit.

    My.stAr
  3. PaulB

    PaulB Titanium2dof Gold Contributor

    Joined:
    Apr 15, 2017
    Messages:
    51
    Location:
    Canada
    Balance:
    265Coins
    Ratings:
    +18 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor
    Thanks for the help. Lots of great information.