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Question 2DOF Linear Traction Loss ( Yaw )

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Erik Green, Aug 29, 2022.

  1. Erik Green

    Erik Green Member

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    Mar 22, 2019
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    My Motion Simulator:
    6DOF
    Is there any reason a 2Dof Linear rig cannot output yaw?
    Erik Green, Aug 29, 2022
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Yes, a standard 2DOF with a uni joint providing pitch, roll, sway, and simulated surge and heave, can't rotate or be controlled in the rotational Yaw axis, which be definition rotates around a center pivot.

    Yaw is a separate axis that would make the rig a 3DOF.
    Last edited: Aug 29, 2022
    noorbeast, Aug 29, 2022
    #2
  3. Erik Green

    Erik Green Member

    Joined:
    Mar 22, 2019
    Messages:
    60
    Balance:
    325Coins
    Ratings:
    +13 / 1 / -0
    My Motion Simulator:
    6DOF
    Guess the better choice of term would have been pseudo Sway (not full lateral motion but rotation about the front fixed mount point). The 2 rear linear actuators can can be commanded to move in a lateral direction correct? When I select 2DOF Linear in Motion, how can I add Sway (rear traction loss?) as an input to Actuators 1 & 2.
    If I also add a single vertical D-Box style actuator to to the front of the rig I should be able to get true Heave as well as true Pitch motion, allowing more motion cue options than a traditional D-Box style rig?
    Erik Green, Aug 29, 2022
    #3