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Showroom DX - Compact Simulator

Discussion in 'DIY Motion Simulator Projects' started by noorbeast, Sep 29, 2014.

  1. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Thanks all for the encouragement.

    The other bit I am focusing on is serviceability.

    To make getting the control box in and out as a unit a bit easier the JRK USB hub has been relocated today, with a 2 part cover made for the left hand side of the sim base, which makes it easier to place the wiring loom inside the limited space of the sim base frame. The 500x500 base frame houses 3 PSUs, 2 USB hubs, an amp and subwoofer down the middle, plus the Fanatec power supply, so there is only a small space for the wiring loom and snap in loom connectors.
    • Like Like x 1
  2. Fredrik J

    Fredrik J Member

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    Dang !!!!! Looking very impressive. Someone have been busy during the holidays ;).
    I love the way you have used every millimeter of space and still have kept it tidy and clean yet functional to the max.
    The new controlbox looks beautiful.....mmm i can taste the carbonfibre look from here :).

    Cheers mate
  3. bob williams

    bob williams OSW

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    Just read through the whole build thread...... Awesome craftsmanship and build! Thanks for sharing!
    • Like Like x 1
  4. hooshang

    hooshang Active Member

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    @noorbeast
    your are a machinist mate...just awesome rig, so neat so proffesional...
    • Like Like x 1
  5. townnet

    townnet New Member

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    Oh my god, this is very nice, excellent job man! This will help and give me some inspiration to my future project. lol
    • Like Like x 1
  6. Fredrik J

    Fredrik J Member

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    Bob, belive me when i say i have :)
    ive watched 3 posts and this is one of my favorites as im goin the same way...as a young gocarter with a swedish championship title.
    Racing is alwas been in my interest..when we started we spent about 200 euros for a full set to go cart.
    Today for a semi interested the same cart goes for about 3500euors in sweden wich is bananas.
    so if i spend 300 on a game and 1000 euros im still ahead.
    And i must say in this area im a noob but im NOT in soldering or pc programming, nor technitian or welding :).
    Im a workshop boy ready fro action and imsiply saying noorbeast bfst PIM and the rest have made the rest of out sim lifes easier with their rigorous testing and knowhow.......electrics is not my best of works so i appretiate all of the work as it has helped me loads.....

    Freddie
  7. Fredrik J

    Fredrik J Member

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    jeez my spelling is bad after a few beers lmao
    • Funny Funny x 1
  8. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Ignore the driving in the video, it is staged using the Assetto Corsa AI. The sole purpose of including my sister as a ride along user was to test the addition of heave on my compact motion simulator.

    I have reinstalled the 60:1s at the front with 50mm CTC levers, as they really don't need to work that hard, with the adjustable heave spring balancing the weight, even on its lowest setting which was used for the video. I will add a tad more sway to the new heave profile as I refine it. The 25:1 handles the heave.

    While it may not look like it surge is pretty good even without using the surge table, as the heave pivot allows some actual forward and back movement via its arc of travel, so you don't need a lot of pitch up and down for a good surge effect.

    The projector is pretty washed out in the video, but I wanted the light to capture the sim movement. The track is Nords and heave adds so much to the experience of it.

    • Like Like x 8
    • Winner Winner x 4
  9. AceOfSpies

    AceOfSpies Living the Dream!

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  10. Fredrik J

    Fredrik J Member

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    NICE!!!! but them speaker will fall off soon hahaha... damn what a rattle it makes compared to before!
    Cant say anything else but Top Notch mate.

    Cheers
    Freddie
  11. SeatTime

    SeatTime Well-Known Member

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    Nice work :thumbs.
  12. mariano68

    mariano68 Active Member

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    Impressive! I'd see all your pics and I still can't understand how it works with the chair base, I will have to give it a third watch :confused:
  13. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
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    One of the challenges with assisted heave is calculating the proper spring rate for the intended load. Often heave ends up being complicated, with a custom spring and possibly a shock like strut, hence expensive. I am guessing that is why it is not often done, other than for larger sims where there is plenty of room.

    To get around that what I did @mariano68 was take the adjustable tilt mechanism for an office chair, which is already made to support a person and chair, flipped it upside down and made a custom adapter for the uni joint. I think that is an elegant, compact and cost effective way to implement heave. The angle of the adapter is critical, as it is designed to minimise the effect on the uni joint of the arc the heave mount travels through. But I have found that you can exploit the small change in fore and aft position of the uni joint for surge in the motion profile.

    Keep in mind that from the onset my compact sim has been as a way to further experiment and explore presence (immersion) with the Oculus DK2 Rift, I came to motion simulation via VR, not gaming. For me my motion sim is a giant haptic device. It is something that adds immersion and compliments a lot of other tech I am playing with in conjunction with the Oculus DK2 Rift. I have learned a lot along the way in terms of compact design for VR and motion simulation and there is more to come yet before I will be happy with it.

    My sim is also my office chair, which is what it started out as in the first place. With the 60:1s at the front and the 25:1 at the rear when the rig is unpowered the heave spring can support me and has some give, which is very comfortable for when I am using my compact simulator as an office chair.

    [​IMG]

    [​IMG]

    [​IMG]
    • Like Like x 4
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  14. mariano68

    mariano68 Active Member

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    Thanks very much for the time you took to explain!
    I'm in the same boat, I came from the DK2 too and my original idea was just to modify my desk chair.
    I'm interested in your heave mechanism as I already have the one from my chair, but it is different than the one you have I think, I will post a pic as soon as I get a cam.
  15. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
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    I already had the mechanism but this is an example of the style I used, so it could be purchased. You would want to hunt around concerning price if there was a need to buy one: http://www.ebay.com/itm/Office-Chair-Seat-Plate-Knee-Tilt-Mechanism-Control-NEW-/380342104992
    • Useful Useful x 1
  16. mariano68

    mariano68 Active Member

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  17. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
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    This is a recent Big Boy test of my compact sim.

    Even with the adjustable heave set to its softest setting it still easily managed to balance the weight and bounce Ben around using the 200W DC heave motor and 25:1 gearbox, with a 40mm CTC lever. The front motors are using 60:1 boxes and 50mm CTC levers.

    The motion was dialed back to 80% in the SimTools Game Manager Profile Editor, as Ben and other willing testers where trying the Lotus Exos 125 Stage 1 at Nordschleife in VR for the first time.

    • Like Like x 4
  18. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    OH PLEASE GOD NO.....NOT THE 125T.......I dont even consider that to be a F1.....Dude pick up the FCM F31 and F37.....you can thank me later.
    • Agree Agree x 1
  19. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    My Motion Simulator:
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    I have not added cars of late as I have been busy with the heave and other projects, but will add those and take them out for a spin @Nick Moxley.

    The real focus for me is not the game play but rather exploring my sims heave capacity, in this case with around twice the normal load. I was rather surprised I did not need to stiffen the adjustable heave spring for such a big bloke.
    Last edited: Aug 14, 2015
  20. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    Thank you, You will realize what im talking about when you do. The S1 is a Bastardized F1 by Kunos....Sooo many thing's wrong with it, its not even funny.