MDF Racing car simulator project. - Page 4

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Thread: MDF Racing car simulator project.

  1. #37
    Moderator ynneb's Avatar
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    Derek, I presume by rotapod you mean something to tilt the car as you drive it?
    Sounds great. I wonder if anyone would like to come up with a design suggestion for one.



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    Benny
    i'll take a look at the files and get started this afternoon. as for cutting out one for free, my dad has a shopbot so i believe that could already be managed. i appreciate the offer though.

    Matt



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    Benny
    As mententioned before, have you considered adding a airbag suspension kit to the sim. I think with some fancy wiring you could have the sim. tilt left and right as you turn for the corners, and raise and lower the front and rear on acceleration and deceleration. (Something you may want to offer as a High End model!) I think if you were going to design a system like this (airbags) it would be better to do it from the start. Even if you don't use the airbags system you could have a design that would allow for future upgrades.
    (Just a thought)

    I have built my own Mame Arcade, just need to put the final touches on like the marquee and front bezel and will probably have to build another for a co-worker. But I have also thought about a racing sim and how cool it would be to have one. So, I'll probably be add this project to my todo list, someday.



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    benny

    what are standard thicknesses for MDF etc. in your neck of the woods?
    also standard roundover bits. i want to do everything in SI but I need common sizings on these items.

    cerealkiller

    i think the air bag thing would work but if it were quick enough to be realistic i would think it would be annoyingly noisy. not to mention having an air compressor in the living room.



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    here we go
    input please







  6. #42
    Registered derekj308's Avatar
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    Hi Benny
    This is what I was talking about

    http://www.prsco.com/

    specifically the R-series rotapod.

    I remember going to a trade show and they had a hydraulic simulator of a V8 Supercar (non Aussies check out this racing class its really cool) where about 10 people all sat in an enclosed room and watched the screen as it threw us around like dolls. It was a mega ride and it actually felt like you were accelerating, decelerating and pulling g's. From outside the ride it didn't look like anything special at all, motion wise at least. Something that could be done with a rotapod and for one person only I would think is quite possible.

    Cheers

    derekj308



  7. #43
    Moderator ynneb's Avatar
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    Matt, you have done exceptionally well. I like what you have done, especially in terms of the cheap seat. This can be the basic option. ( Makes it affordable and upgradable)
    We can get MD is 10mm and 12mm. I think it would be best to use the 12 though. As for the rounded edges, I think that is best done with a hand router after the cutting is done.

    Could you either post a solidworks exe of your work, or the drawing file. This way we could have a look at it in its entirety. Preferable the exe, means others can see it too without having to downlaod the viewer. I would be interested to see how the whole thing looked together, from all angles.

    Derek, I would love to do the rotapod thing, looks very expensive though ? Way outa my budget. However it is fun to think about the possibilities. Keep posting ideas.

    Cerialkiller ( good name BTW. I would like to kill King Willy Wheaty, or at least knee cap Snap, Crackle, and Pop. That damn Co Co pop monkey needs a serious slappin too) The suggestion of the air bags is a good idea. How would you go about implementing it ?

    I am glad you guys revived this thread. I think that once the work is done, there will be quite a few who will build them. I know I will be willing to cut them for local people, at cost plus a small payment for time.

    Keep the input going, Its not that far till we get to see a prototype.

    Benny



  8. #44
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    How involved do you want this to become? There's a relatively low cost way to get a low level G-force perception. Lots of work has been done on what cues people use in assessing their environment, and this seems to be a natural for subtle visual/balance cues.

    It won't have the zing of a "fall off on the floor" tilting platform, but it would have some effect and it's reasonably cheap and DIY-able.


    Tiger



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    the thickness i have used is 15 mil i will change to 12 tomorrow and post the file. how can i post an exe of a drawing? anyway i am drunk now so i will continue at a later date.
    I am thinking the rotapod could be done with steppers? it would only take a round internal gear and some programming to achieve this. it looks to be a much better option than air bags in terms of noise and quality of the simulation. would the control for this be taken from the controllers or output from the game?

    Matt



  10. #46
    Moderator ynneb's Avatar
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    how can i post an exe of a drawing?
    I dont have the program but I do know it can be done. See if there is an option in the file section. Could be under save as or export, its there I know, but just not where.
    15 mil i will change to 12 tomorrow
    At least I can do a test cut at 12mm and see if it will be strong enough. If not we will have to change this.

    How involved do you want this to become?
    Tiger, personally I dont want it too involved, however since this is an open source project, anyone can suggest or add to it as they liked. Please post details of what you know.

    Benny



  11. #47
    Gold Member High Seas's Avatar
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    Benny - just wonderin' will the cockpit have a speedo/tach etc? Some of the flight sims folks are building are pretty tricked out using all sorts of bits (usb interfaced A2D etc) to bring more realism to the environment. I suppose there is no end to the possibilities as an open source project. Cool idea and apporach.
    Jim

    Experience is the BEST Teacher. Is that why it usually arrives in a shower of sparks, flash of light, loud bang, a cloud of smoke, AND -- a BILL to pay? You usually get it -- just after you need it.


  12. #48
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    The basic idea is very simple. Run a capstan cable drive off the back side of the steeringwheel shaft, through a few cheap pulleys and to L shaped levers mounted on the side panels. Long arm of the lever attaches to cable, pivot at corner of L. When the steeringwheel turns, appropriate side of the chassis is levered up just a bit... 1/4 inch is plenty.

    It all integrates in the mind... accelerating in the onscreen curve, slight visual and inner ear cues from the 1/4 inch tipping. The mind tries to reconcile the assorted magnitudes and it "feels" real. Not only is this cheap, it has the added benefit of force feedback on the steeringwheel which magnifies the effect still more

    I forget what all the different cue sizes have to be for the effect, but it's not that hard to track down, since it's part of the aerospace medical experiments on pilot disorientation.


    Tiger



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MDF Racing car simulator project.

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MDF Racing car simulator project.