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Adding 2DOF motion to my 80/20 GS-4 Rig

Discussion in 'DIY Motion Simulator Projects' started by HoiHman, Feb 4, 2015.

  1. bsft

    bsft

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    thats good pricing, it would cost me 3-4 times as much here in Sydney
  2. HoiHman

    HoiHman Active Member

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    I have a question about the center bar that moves the seat.

    Do you guys think that a single 80/20 45mm bar like in the picture below is strong enough for 2 SCN6 40Kfg acculators?

    [​IMG]



    I'm using the stronger type 80/20 with a thicker core

    [​IMG]


    :sos:sos
  3. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Im going to say Yes, Remember its not Moving your Entire Mass, Just a balanced portion of it.
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  4. HoiHman

    HoiHman Active Member

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    Thx Nick.

    Wil try it with one single bar first
  5. HoiHman

    HoiHman Active Member

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    I got a lot of parts today:grin

    - Watercut steel parts
    - 80/20 profiles
    - aluminium plates cut to size

    [​IMG]

    It's unbelievable beautiful to see your design from sketchup come to live and the al the steal parts fit pefectly to the tenth of a milimeter.

    Here's the bracket for the SCN6 acculators

    [​IMG]

    Still waiting for the SCN6 acculators though...........
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  6. HoiHman

    HoiHman Active Member

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    Took the GS-4 or the rig today


    [​IMG]


    I have stripped the G-seat from it's brackets. I will reïnforce the bottom of the GS-4 and mount the pivot on a 80/20 bar directly to it.

    [​IMG]

    The base for the pivot is ready and spray painted. I encoperated some spacers in the design so i have the ability to adjust the hight if necessary. It's made out 6mm solid steal, heavy and solid like a rock :)

    [​IMG]
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  7. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    That is really neat @HoiHman.

    Am I correct in assuming the plate at the front left connecting the seat to the frame is used to lock the seat in position to move it?
    Last edited: Mar 11, 2015
  8. Avenga76

    Avenga76 Well-Known Member

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    Awesome work. Coming along nicely.
  9. HoiHman

    HoiHman Active Member

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    Thanks guys, :)

    Don't have to tell you DIY guys how many hours already have gone into this. A build like this is extremely labour intensive. This is still very much WIP though, but i'm slowly getting there.

    The aluminum plate is just there temporary to keep the seat in position when i remove the left acculator holder

    I have to see how stable the seat will be with the SCN6 mounted. If it woubles too much to move it, i will make a detachable mount a the rear to lock the seat in position while moving it.

    Thx richard and also thank you for pointing me to the "frex damper solution". As it turns out my own design had some flaws in it, so i will be coping their idea.:thumbs

    Guess you can't design everything in sketchup:D, but everything else seems to fit exactly to the mm.
  10. bsft

    bsft

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    looks good
  11. HoiHman

    HoiHman Active Member

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    I got my acculators today :thumbs


    All my measurements and calculations were correct and the SCN6 fit like a glove. So i have started the welding and spraypainted my first acculator mount with hard hat paint.

    [​IMG]

    Progress will be slow this weekend, because i will be following Max Verstappens F1 debuut.

    Ik hope i can find some time to measure all the bolts i need and i will order them in stainless steel.
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  12. HoiHman

    HoiHman Active Member

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    Spend a lot of time today trying to figure out how to wire everything.

    The GS4 needs power and USB and also has 4 Buttkicker Mini LFE's and a Buttkicker Advance, which all need wires.:confused:

    I also found a place for the killswitch, under the shifter

    [​IMG]
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  13. SeatTime

    SeatTime Well-Known Member

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    It is why you see most using a big universal joint which stops any twisting to mount the seat - although you have one? - why the need for the damper - I'm guessing something in the seat mount is flexing?
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    Last edited: Mar 16, 2015
  14. HoiHman

    HoiHman Active Member

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    English is not my native language, so i'm not understand the first part of your quesiton : "It is why you see most using a big universal joint which stops any twisting to mount the seat" Could you please rephrase that for me?

    There is no flex in the seat mount at all. The base of the pivot is made out of 6mm solid steel and centerbar is bolted down with 8 bolts into the GS4, really rock solid. The dampers are there to prolong the life of the acculators and smoothen out the ride a bit.
  15. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    Originally I though you had a twisting issue which is why you installed a support. But in having a quick look back I see you had a big uni joint, so I edited my comment as I was confused with the need for the support. Now I'm even more confused, paid all that money for responsive actuators and then put a damper on them - I guess you know that the ride can be smoothed out in software? Disregard, what do I know...its your sim - look forward to the video of it in operation:).
  16. HoiHman

    HoiHman Active Member

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    Perhaps it's not the kind of damping you are thinking of. It's mainly for protecting the SCN6 and reduces only the ultra violent shocks, while still keep the construction solid and rigid

    I posted a video of the damping before in this thread:



    Hope to post a video of a working motion rig soon, but i'm still waiting for some parts to arrive.
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  17. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    i have never been discussing that rubber damper only the cross support under your seat.
  18. eaorobbie

    eaorobbie Well-Known Member Staff Member SimTools Developer Gold Contributor

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    Dampeners are a must on the SCN's or the vibration they produce eventually cracks the ali bodies apart , seen it on many early SimX units. The only draw back it can dampen some of the movements too , but is a needed for a build to be successful.
  19. HoiHman

    HoiHman Active Member

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    :cheers Just had the Magic moment :cheers

    Every works as expected. The SCN6 are really powerfull. A little bit worried that only 4 M5 bolts are used to fasten them.

    The rig is still far from finished though, but i'm slowly getting there.:)

    Only did a short test with a keyboard in GAS, but the combination of the GS4 and the SCN6 feels pretty awesome
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  20. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    Well done @HoiHman, it is a wonderful feeling when you know it works, despite all the calibration of motion profiles that come after.
    Last edited: Mar 18, 2015