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Thread: Hardware vs. Vibrations?

  1. #1
    Newbie JeeP-3's Avatar
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    Hardware vs. Vibrations?

    Ok the Jeep is a rough riding vehicle that does go off road on rutted tracks and so on so things can really get pretty shakey off road...

    What robust components are out there that I could use? Are we at a stage now where it would be possible?

    What are the most fragile parts? I'm thinking the screen itself, the Harddrive and the CD player... Also what is a good small-size screen out there, that ISN'T touch screen, or IS touch screen but wouldn't be damaged by dust and water if it was in a casing that was sealed to the edges of the screen face.

    My plan was to put the screen in a casing with a sealed perspex screen over it, as the Jeep is often topless and it's possible it could be caught out in the rain... then just put a cheapo touch-pad on the dash for the mouse.


    Are we at a stage yet where I could build a fully robust system, or is that still a while off?

    Saving up will still take me time though

  2. #2
    Newbie JeeP-3's Avatar
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    How vibration-resistant are those DIN-sized cartft computers?

    Can they be mounted vertical? Can a slot-loading CD / DVD drive be mounted face up?I'm thinking inside the center console here

  3. #3
    Maximum Bitrate deadweasel's Avatar
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    Quote Originally Posted by JeeP-3
    How vibration-resistant are those DIN-sized cartft computers?

    Can they be mounted vertical? Can a slot-loading CD / DVD drive be mounted face up?I'm thinking inside the center console here
    A slot load drive would be excellent, but if you mount it in the console, make sure that the disc will be spinning in the same direction as your forward travel. Generally, they spin in a clockwise direction, so I would say when you mount the drive, imagine the CD spinning like another wheel. In your case, if it will be mounted longways along the console, you will want to mount it so that when you load the drive, the label is facing the passenger door.

    There isn't a whole lot of information about the effects of high speed rotating discs in a moving environment, but if there are gyroscopic effects that come into play, you will greatly reduce your potential for damage by mounting it that way. I've heard people advising this method for hard drives to avoid head crashing due to platter flexing, and playing around in the mad scientist's lair of mine shows that it's a definite possibility.

    Hard drive or CD or DVD, if it spins, and its going offroad, your best bet to avoid destruction of your beloved (and expensive) equipment is to mount it so the disc spins with direction of travel.
    The ALEXIS Project
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    Color Coding :
    DONE / MOSTLY DONE / BASE FEATURES / WORKING CONCEPT / NO CODE COMPLETED

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    Newbie JeeP-3's Avatar
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    Quote Originally Posted by deadweasel
    A slot load drive would be excellent, but if you mount it in the console, make sure that the disc will be spinning in the same direction as your forward travel. Generally, they spin in a clockwise direction, so I would say when you mount the drive, imagine the CD spinning like another wheel. In your case, if it will be mounted longways along the console, you will want to mount it so that when you load the drive, the label is facing the passenger door.

    There isn't a whole lot of information about the effects of high speed rotating discs in a moving environment, but if there are gyroscopic effects that come into play, you will greatly reduce your potential for damage by mounting it that way. I've heard people advising this method for hard drives to avoid head crashing due to platter flexing, and playing around in the mad scientist's lair of mine shows that it's a definite possibility.

    Hard drive or CD or DVD, if it spins, and its going offroad, your best bet to avoid destruction of your beloved (and expensive) equipment is to mount it so the disc spins with direction of travel.
    Thanks for the advice... What's the theory behind it being in the direction of rotation of the tires?

    If that's the case that would work perfectly if I were to mount it in the console beside my hip, face up, so as you say, the label would point to the passenger door (or lack thereof, it's a Jeep )

    What about screens? If the face was sealed at the edges, is a touch screen going to have any problems with water contacting the screen?

    Is 7" considered big or small? I want to mount the screen above the rear-view mirror between the two sunvisors, or on top of the dash in the center. I'll need to measure up when I get home this december... I'm currently at University in England.



    There's also the issue of money... I've got an Ipaq 5450 which can take up to 1,256 MB at the moment (1 GB CF card, 256 SD card) and that works well...

    I can also just take it out when I'm done.

    The other thought I've had is I want to restore this beauty:



    For those that don't know it was a luxury car built in the 80's with Cadillac and Corvette parts. It had electric seats and air conditioning!

    It's currently sitting in a junkyard... I'd like to get it and bring it one step further. Give it a new Corvette block and a new interior (current interior is damaged) designed from the start to hold a Carputer.

    It all depends on whether the owner would let me take it. Some people out there like to let things rot away "for sentimental reasons".

    I'm thinking the Jeep doesn't really NEED a carputer, but the pimp-mobile could be quite nice with one!
    It's still a convertible though so I'm still interested in the whole weather-proofing / rugged thing.

  5. #5
    Maximum Bitrate deadweasel's Avatar
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    Ohhhhh man... That roadster looks PRIME for a little technology upgrade! I say why worry about vibration and moisture and all that if you plan to have THAT rolling?!

    Well, if the Jeep is still teh thang, there are a few things to remember. Touchscreens (and all LCDs actually) are going to be a little difficult to see in the direct daylight. Most people can see quite clearly in a car, but then they have a roof. You don't. Which begs the question of where to mount be answered. I wouldn't mount it as high as all the way above the mirror. I would recommend possibly on the dash, or on an armature mounted to the passenger side of the console. On a wide-open Jeep, you are most definitely going to want to have that thing be able to disconnect from its mount so you can stash it away.

    As for the spinning drive thing... Have you ever played with a bike wheel? Try it sometime. Hold the wheel by its lockdown nuts, as if you were the bike frame and the wheel is mounted to you. Now spin the wheel (by revving it up against the floor, or have a friend do it). As the wheel is spinning, you will feel it wanting to move in ways that you wouldn't expect. This is because of centripetal/centrifugal force (I forget which it is! ) That force is what a CD or hard drive experiences. Now if you were to run sideways while holding the wheel out in front of you, you would feel an odd tug from the wheel, trying to pull you around. Because of the gyroscopic properties of a spinning disc, it will help keep things balanced if it is spinning WITH your direction of travel.

    So much for the ghetto science experiment. Hope I helped!

    Cheers.
    The ALEXIS Project
    MP3---VIDEO---GPS---REARVIEW---OBD---SKINNING
    Color Coding :
    DONE / MOSTLY DONE / BASE FEATURES / WORKING CONCEPT / NO CODE COMPLETED

  6. #6
    Newbie JeeP-3's Avatar
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    Hey - actually I have seen that phenomenon with a bike wheel... Maybe I should post pictures of my MP3-Bike I mounted an MP3-player under the saddle and speakers on the handlebar

    I just didn't put the 2 together... that's a good example

    If a carputer went in the Jeep the screen would be angled down inside a housing so that it is always in the shade, and also the housing protects it from the environment a lot.

    But yeah, I want that Excalibur Phaeton convertible
    However, despite the length, that has a smaller interior than the Jeep! The dashboard is damaged so I may have a new one built with the intention of mounting a screen in it right from the start.

  7. #7
    Newbie JeeP-3's Avatar
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    Hehehe... is it just me or does anyone get reminded of Nemo's car from League of Extroadinary Gentlemen with that thing?

  8. #8
    Maximum Bitrate deadweasel's Avatar
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    Quote Originally Posted by JeeP-3
    Hehehe... is it just me or does anyone get reminded of Nemo's car from League of Extroadinary Gentlemen with that thing?
    Damn. Can't say. Haven't seen it yet. Heard it sucks. Me like typing in clipped sentences.
    The ALEXIS Project
    MP3---VIDEO---GPS---REARVIEW---OBD---SKINNING
    Color Coding :
    DONE / MOSTLY DONE / BASE FEATURES / WORKING CONCEPT / NO CODE COMPLETED

  9. #9
    Newbie JeeP-3's Avatar
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    Ah the reviews were full of crap.

    They were *****ing about how a 6 wheeled motorcar with 1920's-1930's styling was "unrealistic" for a movie based in 1899 or whatever... as if Jekyl and Hyde and the invisible man were actually real!

    What about James Bond who used a wireless telephone before anyone had ever thought of the idea?

    I enjoyed it...

  10. #10
    Maximum Bitrate deadweasel's Avatar
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    Quote Originally Posted by JeeP-3
    Ah the reviews were full of crap.

    They were *****ing about how a 6 wheeled motorcar with 1920's-1930's styling was "unrealistic" for a movie based in 1899 or whatever... as if Jekyl and Hyde and the invisible man were actually real!

    What about James Bond who used a wireless telephone before anyone had ever thought of the idea?

    I enjoyed it...

    You know, I do remember the critics saying something like that about Daredevil.

    "It's a stretch to think that a blind man could fight crime using martial arts in such a fashion"

    Pfft. Snooty buttholes. You know, you're right. I will go out and rent that movie, just as soon as I finish this project, which feels like I will be looking for it in the "classics" section by the time it's ready!
    The ALEXIS Project
    MP3---VIDEO---GPS---REARVIEW---OBD---SKINNING
    Color Coding :
    DONE / MOSTLY DONE / BASE FEATURES / WORKING CONCEPT / NO CODE COMPLETED

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