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GS-4 G Force Seat Replica!

Discussion in 'DIY Motion Simulator Projects' started by Milton, Dec 22, 2015.

  1. Milton

    Milton Well-Known Member Gold Contributor

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    Hello everyone!, I am about to start a newwww prooooject! :) after doing the CXC Racer Replica! I want to add the G Force seat from SimXPerience but it is "Discontinue" no longer available, so I think I can do this using! SimTools, 2 JRKs, 2 Potentiometer, 2 small 12V motors high torque and a Kirkey Racing Seat!

    My plans are to automate just the back of the seat using "Roll" settings from SimTools to simulate Gravity, please see the video I created so you can visualizes what I am talking about, in the video i am simulating the movements of the motors! you just have to imagine that you are looking at the top view of the seat,

    stay tune more to come!




    GS-4 seat:
    gS-4 G Force Seat Replica.jpg

    Kirkey Seat
    kirkey seat 01.jpg
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    Last edited: Dec 22, 2015
  2. Avenga76

    Avenga76 Well-Known Member

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    You would want to use sway instead of roll.

    Sway is the lateral G forces which is what the GS-4 uses. Roll would just give you the body roll of the car which in a race car is not that much.

    I have a GS-4 that I sometimes run through Sim Tools (Most the time I use Sim Commander) and the only DOF's I add to it are the G forced based ones so Surge, Sway and Heave.
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  3. Milton

    Milton Well-Known Member Gold Contributor

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    Good Call!

    Thanks.!
  4. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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  5. Milton

    Milton Well-Known Member Gold Contributor

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  6. Milton

    Milton Well-Known Member Gold Contributor

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    I purchase a used Kirkey Seat from ebay with a brand new Seat cover, it is on its way!

    GS4 Seat 01.jpg
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  7. Milton

    Milton Well-Known Member Gold Contributor

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    Update on this project, i cut the wings of the seat because it was on the way to get seated, i also mount the arm for the 2 large motors, i also install the seat bracket and i got the small motors in and the JRKS see pictures, stay tune more to come.



    image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg
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  8. Roadster2

    Roadster2 Member

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    I will be watching this thread with interest. I have a Kirkey seat and cover that I've had for over a year. I originally planned to make a DIY GS-4 seat but my wife sadly passed away and I haven't done anything with it. In fact I've done almost no sim racing since and am looking to rekindle my interest.

    I do though think that two motors per moving leaf would be more stable ?
    Last edited: Jan 15, 2016
  9. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My condolences, that is sad news indeed.
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  10. AceOfSpies

    AceOfSpies Living the Dream!

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    Sorry to read of your loss @Roadster2, you have my sympathies.

    Mike
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  11. Milton

    Milton Well-Known Member Gold Contributor

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    Here is an update on the seat, i have placed the seat in the sim rig now so next is work on the plates for the motors. Here sre some pictures:

    Attached Files:

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    Last edited: Jan 18, 2016
  12. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    +1
    your motors look STRONG! :)
  13. Milton

    Milton Well-Known Member Gold Contributor

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    Thanks! Here are better pictures:



    image.jpeg image.jpeg

    Attached Files:

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  14. haroldjames

    haroldjames Active Member Gold Contributor

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    It a nice looking rig. I'm anxious to see what you do with the seat.
  15. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    You do not seem to have done base settings for the JRKs, the Input 'Never Sleep, box should be checked, you have not used the auto calibration feature for the Feedback, the PID period would normally be 20, the Integral Limut set higher and then the PID tuned, on the Motor tab it would normally be set to Coast.

    Have a look at @eaorobbie's setupup outline here: http://www.xsimulator.net/community/threads/playseat-to-2-dofseat.5401/page-2#post-56352

    And @Avenga76 PID tuning suggestions here: http://www.xsimulator.net/community/faq/practical-examples-video-tutorial-to-jrk-pid-tuning.225/
  16. Milton

    Milton Well-Known Member Gold Contributor

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    Hello everyone, sorry about this but I decided to abandon the construction of the GS-4 Force Seat Replica, the reason: the Kirkey Seat is to hard on the back! It has no cushion no foam on the back and is very uncomfortable to stay seated for longer period of time.

    Sorry for those that were waiting updates on this…
    Best to all.

    I am replacing the Kirkey Seat for a Corbeau fx1 pro.

    Corbeau fx1 pro.jpg
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  17. Roadster2

    Roadster2 Member

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    Yes, it really needs the Kirkey seat cover and preferably some high density foam underneath that as well.