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Homebrewed Robot Exoskeleton In Alaska 202

museumpeace writes "CNET has an article about a robotic exoskeleton ginned up by tinkerer from Alaska There are a few cool pictures. The audacity of Mr. Owens project, if you believe the article, compares to the efforts of the old Home Brew Computer Club when compared to the work of GE or Toyota. Inspiration here comes more from sci-fi and video games than from industrial competition. The article is a good roundup of MECHA related developments, some of which sprang from DARPA money, so I am glad at least a few of my tax dollars are having some real geek fun."
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Homebrewed Robot Exoskeleton In Alaska

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  • by dabigpaybackski ( 772131 ) on Wednesday December 22, 2004 @05:54PM (#11162827) Homepage
    Cute addition there with the head crests a la "Patlabor." And yet I'm still rather disappointed. Where is the 14' energy sword? Jet boosters? Particle beam rifle? Facetious, yes, but it is strange that amid these dizzying technological advancements, humanity's achievements in the field of robotics, circa 2004, are analagous to the state of automotive technology circa 1904. Nevertheless, that is some pretty damn fine backyard engineering.
  • Limited Usefulness (Score:5, Insightful)

    by jgardn ( 539054 ) <jgardn@alumni.washington.edu> on Wednesday December 22, 2004 @05:58PM (#11162876) Homepage Journal
    The reason no one has ever actively pursued mecha is because they would be so inefficient. Tanks and such are built with a low profile, and if you ask frontline soldiers, they are only useful in limited roles. My army friend much prefers the new strykers because of their flexibility and reliability.

    A mecha would be standing 20 feet in the battlefied, an open and tempting target to everything from bombers to tanks to helicopters and to RPGs. It would have limited mobility, be extremely difficult to keep in working condition, and will have less load capacity than its tracked or wheeled counterparts. In short, it would look cool, but would be a useless coffin.

    In BattleTech, they make up for the obvious disadvantages of a mecha by giving them advantages over vehicles. Mecha are more reliable, more maneuvarable, able to take more damage and continue to function, and can carry more weapons. Even then, if you pit a balanced vehicle force against a balanced mecha force, ton for ton, credit for credit, the vehicles can easily overpower the mecha in most circumstances.

    I don't want to discourage this backyard project. After all, how many inventions were made when there was no necessity, but a necessity was found at a later time? But I do want folks to exercise a bit of common sense. If mecha were such a great idea, we'd have used them in WWII. We certainly had the technology to build them back then.
  • by aliasptr ( 684593 ) on Wednesday December 22, 2004 @06:09PM (#11162984) Homepage
    Wow someone used the word "control". After working on a VERY, VERY... VERY simple servo motor control project I have to agree with the skepticism. Who knows though I am stupid, other people aren't. I also haven't dedicated any "real" portion of my life to control systems. Also someone else brought up the impracticality, which seems to be a logical arguement to me. But again I don't really know that much. Overall it is pretty cool for what it's worth!
  • by leftie ( 667677 ) on Wednesday December 22, 2004 @06:15PM (#11163037)
    Mechas make perfect forklifts and industrial machines. There's some use for combat mechas in exotic terrain... mountains, underwater, etc

    They'd make excellent car crushers, too :)
  • by LiquidMind ( 150126 ) on Wednesday December 22, 2004 @06:20PM (#11163082)
    "...and a gas engine mounted on the back to generate the power needed."

    i hope he's got intentions to incorporate some sorta personal heating system....-40 and metal is not a good combination
  • Re:Sorry... (Score:2, Insightful)

    by Blue-Footed Boobie ( 799209 ) on Wednesday December 22, 2004 @06:22PM (#11163099)
    Problem is, just making the lower half weigh more than the top != balance.

    Back in the day a friend and I were working on designs for a workable mech. About 10ft tall. Chicken-Leg design.

    For balance we used a custom designed counter-weight system that was tied into the drivetrain. From the models we built, it worked great - but only for flat surfaces.

    Mechs and bumps/hills/ditches are a realy tough design problem. But just balanced walking is a huge problem to tackle first. Honda poured billions into the ASIMO just to get stable balanced walking.

  • by CmdrGravy ( 645153 ) on Wednesday December 22, 2004 @06:22PM (#11163101) Homepage
    I'm not too sure where that figure of 20ft for the height comes from.

    I don't think there is any inherent reason why powered exo-skeletons would need to be anything like that big and provided they are reliable and able to cope with much the same terrain as general infantry I think they'd be quite effective in any battle situation.

    I would guess the benefits an effective exo-skeleton could bring are in increased carrying capacity for the solider allowing them to carry more food, ammunition etc which would allow them to operate longer in the field with less reliance on supply lines.

    Another aim would be to design a skeleton which enabled the solider to move more quickly and over longer distances than would normally be possible and maybe provide some increased protection from unfriendly weaponary.

    I don't think anyone is suggesting building giant robots because as you say they would just be too easy to target and destroy.

    I am guessing again that the key components in such a suit would be a lightweight, reliable powersource which preferably doesn't need a massive amount of fuel and strong lightweight materials for the skeleton it's self - this is in addition to all the wizzery needed to actually get the skeleton to function in the first place.

    Any army which does develop an effective exo skeleton would be able to field a very dangerous weapon indeed, something capable of deploying powerful firepower, fielded in dispersed units of hard to hit small units, capable of sustained attacks into your territory, able to be inserted quickly and secretly in helicopters, parachutes etc.
  • by k12linux ( 627320 ) on Wednesday December 22, 2004 @06:29PM (#11163178)
    Or how about disaster sites. Strong enough to pick up debris and slabs of concrete but agile enough to do it without knocking everything else onto victims.

    That'd be cool anyhow. Even if it wouldn't be as fun as picking up your neighbor's house and hiding it while he is gone to the store. Too bad the huge footprints leading to the new location of the home would probably give you away.
  • Upright? (Score:2, Insightful)

    by tangledweb ( 134818 ) on Wednesday December 22, 2004 @07:28PM (#11163543)
    Am I the only one who sees an 18 or 35 foot tall mech being build surrounded by scaffolding and thinks that the whole project would have been 75% easier if he judt built it lying down?

    A crane could easily stand it up later, but if it is going to work at all, it would need to be able to stand after a stumble anyway.

    Sure, it looks cooler standing, and probably annoys his neighbours more, but it seems like a very poor design decision.
  • by StCredZero ( 169093 ) on Wednesday December 22, 2004 @08:45PM (#11164153)
    Actually, the Sarcos Large Arm uses hydraulics. In fact, only hydraulics are powerful and responsive enough for machinery like this.

    Real science is better than demolition derby science any day. Instead of a couple of humanoid megasaurs lumbering around, imagine two giant robots nimble enough to do Kung-Fu! (Duking it out with giant clubs!)
  • by GlassHeart ( 579618 ) on Wednesday December 22, 2004 @09:25PM (#11164465) Journal
    offer a few million bucks to whoever builds the first mecha that can go a half mile, pick up a Dodge Neon and move it in the air for 50 feet, then return to the starting line.

    Interesting idea, but how would you differentiate a "mecha" from a forklift in this contest?

    It seems to me that a "mecha", like its human inspiration, is most useful as a creature for general purposes, unlike a spaceship which is meant to carry a specific load to a specific location. Thus, the contest should be designed to prove flexibility and generality, rather than competence at a specific task. Lots of industrial robots can already do very specific things very well. The human hand, on the other hand, is so useful because it can lift a hundred pounds as well as pick up an egg.

  • by aXis100 ( 690904 ) on Thursday December 23, 2004 @01:50AM (#11165897)
    The problem with backhoes is thery are:
    1) Worked so hard and long (due to fiancial pressures) that their joins develop slop
    2) The hydraulic valves only have a limited amount of proportional control

    With a well maintained machine and good proportinal control valves, hydraulic force can be applied very smoothly and controllably. The power/size radio is incredible and is really required for something like this.

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