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The Amazing Lego DAT Tape Changer

lizardboy writes: "This is for the Lego loving computer geek with large backup needs. The Lego DAT Tape changer. It can be interfaced with any platform supporting Lego mindstorms. I have used it with OSX and Linux using dump and NQC with some custom shell scripts. It also works under a Mac OS 9 using Retrospect and RCX."

51 of 217 comments (clear)

  1. Ah, but the best RCX creation of all time is ... by J.D.+Hogg · · Score: 5, Interesting

    ... the lego Rubik's cube solver : that thing was so cool !

  2. Yah, but can it reboot the Lego Webserver? by Com2Kid · · Score: 4, Interesting

    Can it be setup to hit the reboot key on the Lego Webserver?

    That'd be mighty spiffy. :)

    Anybody else remember those old computerized Lego sets for the AppleIIs? I wonder if those could be interfaced to the mind storms, I know of a school that has quite a few of those lying around, it is just that all of their AppleII interface boards died.

    1. Re:Yah, but can it reboot the Lego Webserver? by tsangc · · Score: 3, Informative
      Anybody else remember those old computerized Lego sets for the AppleIIs? I wonder if those could be interfaced to the mind storms, I know of a school that has quite a few of those lying around, it is just that all of their AppleII interface boards died.

      Yes. It's called the 4.5V Lego TC Logo system. It uses 4.5V Technic motors and cannot be used with the Mindstorms RCX system, which uses the newer 9V system-motors, connectors, battery boxes, sensors etc.

      The 4.5V system also has a ISA PC card version that connects to the same breakout box.

      Calum

  3. Now, that is cool. by Agent+Green · · Score: 3, Funny

    I wonder how many boxes of legos would be required to emulate the 300+ cartridge loaded in one of the data centers at work.

    At least replacement parts would be inexpensive!

    --
    // Agent Green (Ian / IU7 / KB1JQO)
    // IEEE 802.3: All 10base Are Belong To Us
    1. Re:Now, that is cool. by Spy+Hunter · · Score: 2
      At least replacement parts would be inexpensive!

      You haven't bought any Legos lately, have you? ;-)

      --
      main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
  4. Missing something by BlueJay465 · · Score: 5, Funny

    Where are the little Lego people? This is cool, but it seems a more effective presentation would include the little lego figures into this contraption. Put some on the lift, some with construction gear, some at the base with the control unit in lab coats working on mini control panels. Some at the local coffee machine or guiding a tour, etc.

    Still a very cool way of setting up a changer, but it would be more fun to add some realism to it :P

    1. Re:Missing something by saintlupus · · Score: 2

      Does this slideshow only work with IE?

      Works fine in OmniWeb on OS X.

      --saint

  5. there could actually be use for this... by bastard01 · · Score: 3, Interesting

    I don't know why I would think of this, but at where I currently work, there is a very large area between where all of the computers are, and if there is something that could make the tape backup process even more automated, it would be better. Time could be spent on better things, like figuring out how to slowly learn how to not use microsoft products, or actually fixing computers. imagine, this could save 5 minutes at least whenever a tape backup is needed, that really adds up with incrimental backups, or especially if there are regular full backups, more tapes to be changed.

    1. Re:there could actually be use for this... by J'raxis · · Score: 2, Funny

      FreeBDSM?

    2. Re:there could actually be use for this... by Alsee · · Score: 3, Funny

      The key to implementing this plan is the proper mumbo-jumbo. Write up a formal proposal and fill it with statistisc relating worker proformance to office moral. Cite the benefits of enhanced work enviornment. Explore the possibility that it may generate free publicity, even if it's just word-of mouth. Free publicity = profits. Perhaps this could be used to make a memorable impression on potential clients. People don't always go with the best or cheapest - they go with what they remember.

      I suck at mumbo-jumbo. Maybe you can find a marketriod buddy to dress it up and print out some four-color glossies. Make it buzzword-compliant, real content-free. Impressive pie charts. Cite several studies. Maybe a few overhead transparencies.

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  6. Its got a few problems... by thogard · · Score: 4, Funny

    The color scheme is something no marketing department will ever agree to. He should have used more beige blocks.

    I also think that it should have some of the littel lego men standing around looking at the thing. Also needs more flashing lights.

  7. Extra functionality by Nathdot · · Score: 5, Funny

    From the looks of this thing it also loads a DAT tape of the inventor snoring, and waves a fake arm around in the bed, if his Mom turns his bedroom door handle when he's taking a day off...

    ...Oh god how many Matthew Broderick references can slashdot handle in a single day!

    :)

  8. Re:That's cool and all... by bbh · · Score: 5, Funny

    Yeah, but that one is a DDS-2 and it is limited to a 4 tape cartridge. His is scalable as far as he wishes to go with it. He can change the tape drive (go for a DDS3)or number of tape drives without any concern for the size of a cartridge for tapes, or the type of tape that it takes given it is 4mm and can be hooked the way he's grabbing tapes.

    That said, I know some idiot will probably trip over his autoloader one day and he'll have to answer for the downtime to put the lego system back together. That will be one impressive interoffice memo (yes, our data recovery system is crippled until we can bring in some third graders to reassemble it...).

    bbh

  9. Legos Rock by iomud · · Score: 5, Interesting

    Wouldnt it be cool if lego made actual tools that werent marketed towards kids. Such that they would be designed to do things of this nature, all purpose reusable engineering kits. Not that I'm too cool for lego's or anything...

    1. Re:Legos Rock by SpinyNorman · · Score: 2

      Well people who want to use them as engineering kits do so - if you search the net you'll find some amazing LEGO creations!

      There's another construction kit sold in Germany (but you can buy it here too) called Fischertechnik that's a bit more MEANT for more technical projects, but it's more expensive and harder to get hold of. It uses more beams than bricks.

    2. Re:Legos Rock by GTRacer · · Score: 2
      I'm a freak for the Expert Builder/Technic sets but all Lego is good.

      I've always wished they'd beef up their Technic cars a bit, maybe with a few steel/titanium/aluminum parts to serve as frame stiffeners and similar metal gear and shaft parts so the drivetrains don't crack when somebody tries putting in a high-torque electric motor...

      GTRacer
      - My fav gift from my wife was the 8880 Super Car...

      --
      Defending IP by destroying access to it? That makes sense, RIAA/MPAA. Go to the corner until you can play nice!
  10. Re:Made Too Late by jsprat · · Score: 2, Informative

    In this decade, we don't use casettes

    Yeah, but some of us use DAT tapes to back up our hard drives...

  11. Legos need love too! by No_Slacks · · Score: 5, Funny
  12. I can see it now... by Sivar · · Score: 2, Funny

    >

    Ahh yes, and here's where we have our fully redundant Linux cluster with an uptime of 2 years. If anything does ever go wrong, we have a Lego Mindstorms backup system in place. I think we can trust that the database will never be lost.

    And here we have...

    --
    Computer Science is no more about computers than astronomy is about telescopes. --E. W. Dijkstra
    1. Re:I can see it now... by Publicus · · Score: 2

      That's a pretty apt comment, I must say. Whenever I try to float any kind of Linux idea across the suits in my office they look at me like I'm suggesting building computers out of Legos. If it doesn't say Compaq on it, they won't buy it.

      The funny thing is, we've had so many problems with our mega-buck Compaq setup perhaps a Mindstorm/Beowulf cluster is exactly what we need!

      --

      My Karma was at 49, then they switched to words. All that work for nothing!

  13. links to the images by rehannan · · Score: 5, Informative
  14. Six Nines? by shoemakc · · Score: 3, Funny


    Ahh....but does it sport a six nines availability rating? From the looks of it, more like 4,5 tops. Maybe it just needs a little hot glue...

    --
    --an unbreakable toy is useful for breaking other toys--
  15. Free Time :: Lego by ellem · · Score: 2

    My son is two. He plays with Lego, and Duplos (which I believe _can_ be pluralized.) Dan, my son, does _not_ have a job. He goes to school, but, he plays with Lego bricks when he's there (note how I neatly avoided pluralizing Lego!) so that doesn't count.

    I think if you are playing with a product like Lego to accomplish something you might have too much time on your hands.

    My son certainly does. And this guy... a Mac loading up to iTools (s/b sTools for SLOW) he must be sick with all the free time he's enjoying.

    --
    This .sig is fake but accurate.
    1. Re:Free Time :: Lego by radish · · Score: 4, Informative

      Except their not latin. Lego is danish (I belive it translate's as "play well"). Don't know about Duplo, could be danish as well. There is no plural of Lego:

      I play with Lego.
      He plays with Lego.
      Look at all that Lego.
      Look at all those Lego bricks.
      Eeek! There's a load of Lego in my server room!

      --

      ---- Den ene knappen er powerknapp, den andre er Bender voice knapp "Bite My Shiny Metal Ass"

    2. Re:Free Time :: Lego by Lars+Rindsig · · Score: 2, Informative
      Please step aside, gentlemen, I am a Dane. I know what I'm talking about. (Well, I don't but ...)
      Lego is danish (I belive it translate's as "play well").
      Well, it's actually an acronym consisting of LEg GOdt, which is indeed Danish and translates to "play well".
      Don't know about Duplo, could be danish as well.
      Don't think so, though. Just sounds neat, I guess.
      There is no plural of Lego
      Right you are again. We say "LEGO-klodser" ("LEGO bricks") or just LEGO.
  16. Cool... by mlk · · Score: 2, Funny

    if I replaced the "tape drive" with a crayon, and the set of tapes with Index Cards, I could use it as a redunt "CowboyNeal w/Index Cards and a Crayon"...

    --
    Wow, I should not post when knackered.
  17. Re:iTools by Pope · · Score: 2, Informative

    it's the custom JavaScript that gets automagically put into the iTools photo albums. FWIW, they don't work in Opera PPC either.

    --
    It doesn't mean much now, it's built for the future.
  18. Lego by jchawk · · Score: 3, Funny

    I want to build a lego robot that does nothing but hit refresh in my web browser and check slashdot for new stories, and then submits first post! w00t

    -I'll Bash you in the forhead.

  19. Sorry about iTools by lizardboy · · Score: 4, Interesting
    I was in a hurry to post the pictures. I have changed the page. Hope it helps. I will now go back to my bucket of legos and work on the CD changer/ duplicator.

    Lizard Boy

    1. Re:Sorry about iTools by Night0wl · · Score: 2, Interesting

      Don't suppose you could send me an email to discuss things? :)

      I've been wondering about how to make a duplication machine via. lego's for some time now. (the @neversleeps.org addy will reach my inbox)

      I've figured out how you could off load burnt cd's. It would take some warranty voiding but could be done. Just simply cut the end of a tray loading drive out, giving you an open U shape.

      then it's just a matter of flipping the cd up and over to what ever you want, I was thinking a dowel rod would work.

      the only thing I haven't figured out is how you could load in a new blank cd with out needing to pre-load them into something to make it easy enough. Just right off the spindle.

      --
      Computational Madness in a round package.
    2. Re:Sorry about iTools by Night0wl · · Score: 2, Interesting

      There's still the issue of loading a new CD.
      I think it would be easiest to load from a spindle, i.e. take off the wrapper, open the lid, bingo! all set for your next batch of 100.

      Suction could be a possability. But without having lego's around to tinker and toy with I'm stuck thinking. That and I can see them getting suctioned on, but not off. Nothing quite like getting sucked off and it never ending :-\

      If you wanted to avoid cutting your burner's tray, I can think of a few other methods for offloading the finished cd. But this is simple. :)

      Drive's open, flip, and we're done.

      I don't mind cutting it either ;) i'm nutty like that..

      --
      Computational Madness in a round package.
    3. Re:Sorry about iTools by Pfhor · · Score: 2, Interesting

      If you look at a CD tray, you will notice two notches on both sides. My school just got a bulk cd copier, and it has two little flappers that pick up the cd from there, then has the tray retract, and just drops them onto a moving sled, to be shot out one side (burn successful) or the other (burn failure). Really quite cool, cause it uses standard CDR drive.

  20. Re:iTools by lizardboy · · Score: 2, Informative
    I killed the standard iTools layout and posted my own.

    Lizard Boy

  21. Re:That's cool and all... by bbh · · Score: 3, Funny

    Very true, and what if the cleaning lady came in one morning and sucked up half the autoloader! All that ingenuity (and lego pieces) gone, and I'm not sure insurance would even cover it.

    bbh

  22. Think Wurlitzers by WyldOne · · Score: 2, Funny
    Ever see those old LP, Jukeboxes? Could use to model a CD changer.

    If seen from above:
    • Noon - tape drive and a lifter - ths lifter would push up under cd when tray was ejected to put cd in position to grab.
    • 2 O'clock - stack of blank CDs
    • 4 O'clock - output stack - dupped
    • 6 O'clock - stack of originals
    • 8 O'clock - output stack - originals
    • 10 O'clock - CD labeler - a pen with lifter(up/down) then X/Y plotter to actaully label CD
    • Center - a 'CLAW' - rotates 360, up down with angled rubber grippers. Sorta like a crane.

    I think that dupping a cd is easy - but labeling it after is the time consuming part. You could also handle multiple CD drives at a time.
    --

    make Linux, not Microsoft. sin(beast) = -0.809016994374947424102293417182819
  23. Re:Too Bad by The+Original+Bobski · · Score: 2

    I don't buy it. I grew up on the real thing; solid metal. Legos were cheesy crap play toys against an honest-to-god Erector Set.

    Why, in my day, you were measured by the amout of metal you owned. Erector and Tonka were it. Everything else was cheap garbage.

    --
    satire, n: 1) witty language used to convey insults or scorn; 2) a form of humor lost on most slashdot moderators.
  24. A Lego compiler by Polaris · · Score: 5, Insightful

    Lego is obviously good for prototyping these sorts of products, but it would be cool if there was a Lego compiler that would scan the completed model and produce parts by eliminating all but the minimum number of inter-connections required for efficient assembly, and replacing the Lego connectors with more permanent ones.

  25. What would be interesting.. by Anonymous Coward · · Score: 2, Funny

    ..is a lego DAT tape changer, which can not only change DAT tapes, but build more copies of itself, given the appropriate lego blocks required. These in turn would create more..

  26. Lego on the company? by Kindred+Spirit · · Score: 3, Funny

    So, this would mean that now I have actual justification to submit a purchase order for Lego.
    Superb :)

  27. Mac OS X backup? by green+pizza · · Score: 2

    How does OSX handle tape backup? Is it more like Windows, Linux, or Mac OS 9?

  28. There's actually a case for this by Colin+Smith · · Score: 2

    Tape media is by far the cheapest media, the problem with it is that you usually need many tapes.

    This means that you have to swap tapes in and out of the tape drives. There's two ways of doing this:

    1: Manually.
    2: Robotic tape library or autoloader.

    No1: Is a pain in the arse and unreliable.
    No2: Is very expensive, making it cheaper to use other methods of backup, like cheap disks.

    So there *is* a case and a market for cheap tape libraries which you can plug your existing drives into.

    --
    Deleted
  29. You *are* a numpty, aren't you. by Colin+Smith · · Score: 2

    DAT tapes are used for backups.

    Christ do they let just *anyone* in here?

    --
    Deleted
  30. Re:How about a CD Changer by seewolf · · Score: 3, Informative
  31. change something else? by sensui · · Score: 2, Funny

    Think of anything else that a Mindstorm can help you to change... ah... toilet papers.

  32. I triet to get my IT dept to install one of these. by technopinion · · Score: 2, Funny

    Since they always want to do things on a budget, I told him I could build a Lego tape changer for a mere pittance. He wouldn't go for it though.

    Something about not being fault tolerant...

  33. Creativity vs. Unemployment Research by Pharmboy · · Score: 2, Interesting
    I have noticed a direct correlation between the unemployment rates in the tech sector, and these type of creative (although of limited practical use) technical devices.

    After two years of research, crunching numbers on dozens of computers using parallel processing, I have discovered the reason for this phenomena.

    Result: They have too much time on their hands.

    --
    Tequila: It's not just for breakfast anymore!
  34. Hooray for spell check! by sporktoast · · Score: 2

    I believe the title of the page says "The LEGO Date Tape Loader".

    Wasn't there a segment about that in the 1957 classic Amazon Women on the Moon? You know, the one with Andrew Dice Clay.

    --
    In a related story, the IRS has recently ruled that the cost of Windows upgrades can NOT be deducted as a gambling loss.
  35. Wow. And I used to be so proud... by dinotrac · · Score: 3, Funny
    These Mindstorms things are amazing, but not half so amazing as the people who come up with ways to show them off. There are some real bright and creative folks out there.

    When I was a kid, I was proud to make something looked kinda sorta like an airplane.

    It sure as hell didn't fly or do anything spectacular.

    Well, it did come apart if I dropped it.

  36. How about for an HP DDS-3 drive? by nsayer · · Score: 2, Interesting

    First, like so many others in this thread, let me say that the force is strong in this one.

    From what I can figure from the pictures, it does ejection the same way that it does picking -- counting on the little lip on the bottom of the cartridge to stick out far enough that the matching hump on the end of the spatula can grab it.

    The problem is that since I have an HP DDS-3 drive, I won't be able to count on that mechanism because unfortunately when it ejects the cartrdige, the bottom slide is still in the open position. Actually pulling the cartridge out is what closes it. So the "lip" isn't there. One would have to give the picker some sort of horizontal tweezers to pinch the cartridge and back it out. That sounds rather difficult, unfortunately.

  37. Re:Too Bad by markmoss · · Score: 3, Interesting

    I grew up with erector sets -- the older part of my set (from the 1950's) was pretty strong, but very heavy. The later stuff had "beams" stamped from the thinnest possible metal, you had to bolt 4 of them together in a box beam to get any strength. Legos were a little pricy for my family. (Plastic resins are expensive by the pound, although forming them into intricate shapes is cheap. Carbon steel is amazingly cheap in bulk, but making something out of it can get pretty expensive. Erector set pieces, except the screws and nuts, were made by rolling and stamping, which is as cheap as metal-forming gets if the quantities are large enough.)

    I think Legos would be as strong or stronger than the later Erector sets if you glued the bricks together. One brick is pretty strong. Trouble is, if you used a strong glue, the pieces are no longer re-usable...

  38. Re:Just what I don't need... by RGRistroph · · Score: 2

    I have some of those cue cat devices. Various projects exist on freshmeat to print bar codes.

    I'd feel half inclined to do it myself, but I have too many hobby projects needing attention already. Also, I'd use CDs rather than tapes.