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6DOF Profiles.

Discussion in 'SimTools Plugins' started by SeatTime, Jun 11, 2016.

  1. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    AC motor, Motion platform
    So I'm waiting for my PCIe USB3 card to arrive so that I can get back into the sim and though I might throw up what I have been working on in regard to 6DOF Stewart Platform profiles.
    As most would know in Simtools we can set 6DOFs over 6 or 12 (V2.0) axises - but only once on any axis/interface.
    Now this is fine for most simulators, but when it comes to a 6DOF stewart platform the requirements are not quite so straight forward.
    Example 1 Standard DOF setup.


    Now this looks like its working fine, but for any sustained braking, acceleration or cornering it just does not work for me.

    lets try to move Surge and Sway into Pitch and Roll for sustained braking, acceleration and cornering.
    Example 1 Surge and Sway as Pitch and Roll.

    Feels OK, but we have built a 6DOF, so with no real surge of sway we are leaving allot on the table in regard to what the rig is capable of.
    So what are we after - lets look at this professional Cruden sim


    So now that we know what to aim for - what's next?

    While researching this, decided to use BFF software which has the ability to add acceleration offsets into pitch and roll.



    This works well and looks very close to the Cruden, but as I would still like to use Simtools due to its wider game list and much simpler operation/setup had a talk to @yobuddy in testing a V2.0 plugin that allows surge and sway data to be placed in both roll/ pitch and surge/sway.
    Test example below:



    This also worked quite well, but needed some filters applied to take the edge off the movement, which was not possible due to other more pressing issues in V2.0 beta. With the release of V2 I am keen to develop this further.

    So there you go - all just my opinion, but would be interested in what the other 6DOF users think about this.
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    Last edited: Jun 11, 2016
  2. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Wow what a difference , its a hell of a lot better than just going side to side linear like and forward backward . The extra pitch and roll can easily be seen.

    Hopefully @eaorobbie will finish his 6DOF math add on for v2.0 which should hopefully make it work perfectly how it should do :)
  3. BlazinH

    BlazinH Well-Known Member

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    While it would be great to have an all in one solution using Simtools @SeatTime, since you already bought BFF sofware, for now why not just drive BFF with Simtools NET output so you can have more gaming options?
    http://bffsimulation.com/6DOF-Motion-Software.php
  4. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    I have not forgotten about this @SeatTime!
    Its just going to take re-working the plugin a bit, and I need to the get the first release out so anyone can make plugins!
    yobuddy
  5. eaorobbie

    eaorobbie Well-Known Member SimTools Developer Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, JRK, SimforceGT, 6DOF
    My plugin works with calculating angles for motor positions , purely in true 6dof, plus cog calc is there , that's the one that will make a difference like this.
    Work lifes been a little flat out with people taking holidays and me taking on double roles, its on the da be finished list.
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  6. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    Have not really looked into it @BlazinH , although it still will be a pain to setup up each time a game is run. @yobuddy Yea I know you are busy with more pressing tasks, but just wanted to get this out there more for information/comment than anything else. @SilentChill -. I originally thought that extended surge and sway for breaking, acceleration, cornering was done with washouts. It was not until I tried BFFs software that I found this not to be the case. The feeling it gives is just great and could be used in lots of rigs not just 6DOF. As for 6DOF and COR math - that will obviously help in positioning the rig more correctly (especially the roll center), but not in driving acceleration outputs into pitch and roll.
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  7. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Either way, Since 2.0 allows for both Interface and Axis Assignment (math) plugins, anything is possible.
    Like @eaorobbie 6DOF plugin!