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A 3D Lego Fabricator Made of Lego

eldavojohn writes "Making a Lego printer is pretty cool if you've never seen The LegoMakerBot. The creator has instructions on his site on how to make (out of Lego bricks) a machine that 'prints' Lego models — much like a 3D fabrication machine — after you model them in MLCad. The sped up video is nothing short of impressive."

87 comments

  1. Amazing! by headhot · · Score: 3, Insightful

    Next step? Lego C&C machine.

    1. Re:Amazing! by nschubach · · Score: 1

      At first I thought this LEGO machine actually made LEGO blocks... which would have been far cooler.

      --
      Every time I start to have faith in humanity, I ruin it by driving to work between 7 and 8 am.
    2. Re:Amazing! by Anonymous Coward · · Score: 2, Funny

      A Lego Command and Conquer machines?
      Or perhaps you meant, Computer Numerically Controlled?

    3. Re:Amazing! by mdemonic · · Score: 1

      Lego Command & Conquer machine?

    4. Re:Amazing! by decipher_saint · · Score: 5, Funny

      Self-replicating Lego machines? That would be the end of bare feet as we know it!

      --
      crazy dynamite monkey
    5. Re:Amazing! by Squeeonline · · Score: 1

      I'll be more impressed (and scared) when the lego printer, can make more printers out of lego blocks. And make more blocks out of liquified humans.

    6. Re:Amazing! by migla · · Score: 1

      Yep. And too bad it didn't, since, as can be read in tfa:

      "I literally ran out of Legos while trying to build this."

      I wonder what it would imply to figuratively ran out Legos...?

      --
      Some of my favourite people are from th US; Vonnegut, Chomsky, Bill Hicks.
    7. Re:Amazing! by migla · · Score: 2, Funny

      hmmm... On second thought, *literally* running out of legos is kind of intriguing. It would necessitate that the author is really tiny or has very large bricks...

      --
      Some of my favourite people are from th US; Vonnegut, Chomsky, Bill Hicks.
    8. Re:Amazing! by Vectormatic · · Score: 1

      well, slap some external plating on this contraption and you are pretty close to the GDI factory, too bad it can't build tanks yet...

      --
      People, what a bunch of bastards
    9. Re:Amazing! by Anonymous Coward · · Score: 0

      Not BIG enough.

      I was thinking future headlines like:

      "Lego Von Neuman machines set to take over the world! Humans cower in fear!"

    10. Re:Amazing! by ian_from_brisbane · · Score: 0

      Self-replicating Lego machines? That would be the end of bare feet as we know it!

      If you have bare feet and need to cross a vast scattering of lego, just get down on your knees and crawl across. Knee pads optional.

    11. Re:Amazing! by eln · · Score: 1

      After that? Lego C&C Music Factory!

      The trick is getting the legos to perform those killer dance moves.

    12. Re:Amazing! by natehoy · · Score: 1

      Don't worry. You're safe, at least for now. It'll start with anyone who calls them "Legos". :)

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    13. Re:Amazing! by FatdogHaiku · · Score: 1

      Did you mean CnC machine?
      Also, I was bummed to note that this is a Lego assembling machine, not a Lego Fabricator (i.e. something that fabricates Lego blocks). I guess my dream of rapid prototyping new Lego blocks will have to wait...

      --
      You have the right to remain sentient. If you give up the right to remain sentient, you will be elected to public office
    14. Re:Amazing! by Anonymous Coward · · Score: 0

      Killer because you'd die of embarrassment if anyone actually saw you doing them.

    15. Re:Amazing! by Anonymous Coward · · Score: 0

      Nope, I think he did mean Command and Conquer machine since this is already a Computer Numerically Controlled machine. (OP seems to, incorrectly, assume that this doesn't count as CNC because it isn't a milling machine or a lathe.)

    16. Re:Amazing! by BitZtream · · Score: 1

      I think you mean CNC machine.

      --
      Persistent Volume manager for Kubernetes - https://github.com/dwimsey/openshift-pvmanager
    17. Re:Amazing! by mcgrew · · Score: 1

      Not if you have bear feet.

    18. Re:Amazing! by GameboyRMH · · Score: 1

      Obviously you've never seen the "Mini cowboy lego rodeo" challenge on Fist of Zen.

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    19. Re:Amazing! by Anonymous Coward · · Score: 0

      Do you mean CNC (computer numerical control) [wikipedia.org]?

    20. Re:Amazing! by TheGothicGuardian · · Score: 1

      Figuratively could mean that he has other Lego creations that he refuses to demolish for parts, or that some of them are lost or ingested.

  2. sped up video? by SoupGuru · · Score: 0, Flamebait

    I'm sorry but I disagree that the sped up video is nothing short of impressive. Even at 16x, I quickly lost interest.

    --
    What doesn't kill you only delays the inevitable
    1. Re:sped up video? by AvitarX · · Score: 3, Funny

      Do you mean it's something short of impressive?

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    2. Re:sped up video? by Anonymous Coward · · Score: 3, Funny

      I'm sorry but I disagree that the sped up video is nothing short of impressive.

      Even at 16x, I quickly lost interest.

      So, if you played it at 4x or 2x, you would slowly lose interest.

      At that rate, you should play it backwards. It would instantly be your favorite footage!

    3. Re:sped up video? by Culture20 · · Score: 1

      I'm sorry but I disagree that the sped up video is nothing short of impressive.

      Even at 16x, I quickly lost interest.

      So, if you played it at 4x or 2x, you would slowly lose interest.

      At that rate, you should play it backwards. It would instantly be your favorite footage!

      It's always more fun to watch someone destroy the creations than watch someone build them.

    4. Re:sped up video? by Arccot · · Score: 1

      It's always more fun to watch someone destroy the creations than watch someone build them.

      That does explain the amount of devoutly religious people in the world willing to kill for God and preaching celibacy. They're just trying to entertain God in the most efficient way possible.

    5. Re:sped up video? by treeves · · Score: 1

      Try it at 256x. Then it's over before you have time to lose interest.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
  3. Oh my dear god by SmallFurryCreature · · Score: 4, Funny

    The builder made a colossal mistake. He included a design readable by the machine to build itself. This is how Skynet REALLY got started!

    We are doomed!

    --

    MMO Quests are like orgasms:

    You may solo them, I prefer them in a group.

    1. Re:Oh my dear god by hcpxvi · · Score: 5, Funny

      Meh. I, for one, welcome our new self-assembling, replicating lego overlords.

    2. Re:Oh my dear god by bertoelcon · · Score: 3, Funny

      Meh. I, for one, welcome our new self-assembling, replicating lego overlords.

      Oh crap, am I the only one who thought of Replicators from Stargate?

      --
      Anything can be found funny, from a certain point of view.
    3. Re:Oh my dear god by lavagolemking · · Score: 1

      The worst it could do to non-imaginary humans is throw plastic blocks at us, in which case you build something harder than plastic to hide in and you're safe. Sucks for all those innocent Lego-people who are hunted down in their own Lego-homes by Lego-terminators though...

    4. Re:Oh my dear god by cgenman · · Score: 1

      Step 1: Have it sell fabrication services online.
      Step 2: Take the money earned, and invest in more lego bricks.
      Step 3: Have it build more of itself.
      Step 4: Teach it to hate.

    5. Re:Oh my dear god by RivenAleem · · Score: 1

      I always thought that the replicators were made of Lego. But when the 'human' replicators appears it shattered my pre-conceptions.

    6. Re:Oh my dear god by Anonymous Coward · · Score: 0

      No, you're just the only one foolish enough to admit this was your first thought instead of the alternative on a forum with a Trek-heavy fanbase. Please hand in your geek card at the door on your way out!

    7. Re:Oh my dear god by ian_from_brisbane · · Score: 0

      I'm going to sleep... Please wake me up when this meme isn't funny anymore so I can sit up and smell the year 3000.

    8. Re:Oh my dear god by bluefoxlucid · · Score: 1

      Smaller lego, really.

    9. Re:Oh my dear god by Anonymous Coward · · Score: 0

      I'm pretty sure the machine uses bricks other then the very limited rectangular blocks the machine can handle and I'm pretty sure the machine is higher then 12 blocks. It'll take it a while to figure out how to miniaturize its young and then let them (or their offspring) grow. So we have at least on generation to wipe them out.

    10. Re:Oh my dear god by interval1066 · · Score: 1

      Meh. I just want a cheese replicator made out of cheese. I'm still waiting for my jetpack btw...

      --
      Python: 'And then suddenly you have a language which says "we're all stuck with whatever the whiniest coder wants".'
    11. Re:Oh my dear god by Coren22 · · Score: 1

      WAKE UP.

      This meme hasn't been funny for years.

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
    12. Re:Oh my dear god by ian_from_brisbane · · Score: 0

      Thank you! Now someone please tell the mods.

    13. Re:Oh my dear god by psithurism · · Score: 1

      Well, he forgot to include the important step of how to borrow your owners credit card and order the parts you need for your progeny; I wouldn't be too worried...yet.

    14. Re:Oh my dear god by asc99c · · Score: 1

      Nah... they we're clearly made from Meccano. But even Meccano doesn't come with human parts so I can't shed any light on that.

    15. Re:Oh my dear god by Anonymous Coward · · Score: 0

      actually, i sort of think that i DO welcome lego overlords. they were so much fun as a kid, they could never hurt us. they LOVE us.

    16. Re:Oh my dear god by bertoelcon · · Score: 1

      You get the Legos warm and re-meld the plastic ever so lightly and could get textures like a wax figure, just don't ask how I know that.

      --
      Anything can be found funny, from a certain point of view.
    17. Re:Oh my dear god by Anonymous Coward · · Score: 0

      Oh crap, am I the only one who thought of Replicators from Stargate?

      defeatable by 6 year olds

  4. Recursion by atisss · · Score: 2, Interesting

    Can it print itself? There's a model picture of itself at the end.

    1. Re:Recursion by somersault · · Score: 2, Informative

      It could print parts of itself, but it would obviously run out of space before it managed to print the whole thing, since it can only rotate teh assembly rather than move it along. Even if it could shift the sub-assemblies out, it would need some way of assembling them.

      It also seem that it can only build using one type of block at the moment, so it can't add in motors, control blocks etc. (yet!).

      Still, it's pretty cool :)

      --
      which is totally what she said
    2. Re:Recursion by nmoog · · Score: 1

      No, but it can print the individual parts that make up itself.

    3. Re:Recursion by TangoMargarine · · Score: 1

      It doesn't print anything, it just assembles stuff out of blocks. Heck, you even need to feed the blocks in by hand.

      This is far from the "build anything you want" that the article claims, as it can only use 5 kinds of Lego blocks, is limited to 12 blocks tall, and can't print blocks so it's limited to whatever blocks you have on hand. Feh: Skynet fail.

      --
      Unity? Screw that: XFCE. Slashdot Beta? Screw that: SoylentNews. Australis? Screw that: Pale Moon. UX developers DIAF
    4. Re:Recursion by Anonymous Coward · · Score: 0

      No, obviously it can not assemble anything the same size (or bigger) as itself. The design is lacking.

      Plus there is no way it could assemble the specialized parts like the motors and such, it can only do the standard rectangle bricks. I bet it can't even handle the slanted pieces.

    5. Re:Recursion by Anonymous Coward · · Score: 0

      Small steps of progress are no match for Tango's Dismissive Pessimism!

    6. Re:Recursion by Stenchwarrior · · Score: 1

      It could print parts of itself, but it would obviously run out of space before it managed to print the whole thing

      It's like that Steven Wright joke: I want a tattoo of myself, only taller..

      --
      Loading...
    7. Re:Recursion by peragrin · · Score: 1

      This is just thefirsthalf of the machine anyways. The secondhalf takes the sub assemblies this produces and assemblies them from the outside.

      Stage three wil be to take several complete units and have them work in parallel useing networking.

      stage four is were it gains sentience.

      Hopefull we live past stage 5

      --
      i thought once I was found, but it was only a dream.
    8. Re:Recursion by mcgrew · · Score: 1

      I thinkyou needa newkeyboard...

    9. Re:Recursion by SharpFang · · Score: 1

      It can print using 5 kinds of blocks.
      It's still not nearly enough, esp. that these must be BLOCKS (not gears/axles/etc).

      --
      45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
    10. Re:Recursion by peragrin · · Score: 1

      nope keyboard works just fine, it's what you get when you type on tiny cellphone keyboards with poor software error correction.

      --
      i thought once I was found, but it was only a dream.
  5. Thats unexpected! by SolitaryMan · · Score: 0, Redundant

    It seems that our robotic overlords are coming from the most unexpected place: Lego!

    I for one ...

    --
    May Peace Prevail On Earth
  6. not so bad by Anonymous Coward · · Score: 0

    Of all the ways humanity could be exterminated by its own creations, this sounds like the coolest.

    Hell, I think I imagined this back in the '80s. See, I built this huge monstrosity out of a mish-mash of bricks and had it attack all my space-suited minifigs in their sleek spaceships...

    Why the hell did I have to grow up?

  7. Cloning by lavagolemking · · Score: 1

    That's nice and all, but can it build an exact copy of itself? That would be awesome.

    1. Re:Cloning by binkzz · · Score: 1

      That's nice and all, but can it build an exact copy of itself? That would be awesome.

      No, it can only assemble stuff out of 4x2 blocks, and nothing over half its own size.

      --
      'For we walk by faith, not by sight.' II Corinthians 5:7
  8. Physical recursion! by Poodleboy · · Score: 1

    It would rock if they programmed it in Lisp...

    1. Re:Physical recursion! by maxwell+demon · · Score: 1

      I seem to remember something about a Lego Turing machine. Use that to control the Lego fabricator!

      --
      The Tao of math: The numbers you can count are not the real numbers.
    2. Re:Physical recursion! by hey! · · Score: 3, Interesting

      Actually, this reminds me of the classic AI simulation program "Blocks World", which *was* written in Lisp.

      Basically, it modeled a group of stacked blocks, and you could tell it, "put the red block on the blue block." If there were a yellow block on top of the red block, it would figure out that in order to meet its goal of picking up the red block, it had to remove the yellow one first.

      What was especially cool is it could explain itself. You could ask "Why did you move the yellow block?" and it would say "To get at the red block." If you asked "Why did you move the red block" it would say "Because you told me."

      That doesn't seem like much today, but thirty years ago it was the next thing to wizardry. Once you figured out how the program worked, you really understood why recursion is such a big deal in AI programs. Each individual inductive step was simple, but the results were impressive.

      To actually get the lego machine to fabricate parts is no big deal; that's just running through a predefined set of motions. What would be cool is if, like Blocks World, you told it what you wanted, and it took care of the details for you.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  9. I can't wait... by sootman · · Score: 1

    ... until 3D printers are affordable and everywhere, like Cory Doctorow describes in Makers . Now that I've got a kid, I keep wanting to print small, one-off plastic bits to repair and enhance toys.

    --
    Dear Slashdot: next time you want to mess with the site, add a rich-text editor for comments.
    1. Re:I can't wait... by glop · · Score: 1

      The Makerbot and other are about 750$.
      And the plastic seems to be 15$ a pound if I remember well.
      That's starting to look very affordable already.
      There was a guy who made a replacement part for his dishwasher on the Make blog or instructables. One or 2 hacks like that and the machine pays for itself...

    2. Re:I can't wait... by sootman · · Score: 1

      Thanks, I had thought they were a lot more, like in the several-thousand neighborhood. store.amkerbot.com says $1,225 right now. I googled 3D printers a while ago and the ones I found were expensive, now I see a Wikipedia page which has several listed with prices. Thanks!
      http://en.wikipedia.org/wiki/3D_printing

      --
      Dear Slashdot: next time you want to mess with the site, add a rich-text editor for comments.
  10. Very cool by NYMeatball · · Score: 1

    Too busy marveling at this to make any lean/robot/overlord jokes. Very cool.

  11. Will Lego ever license third-party fabriactors? by swb · · Score: 1

    I went to an estate sale recently and bought a 5 gallon tub filled with Legos for my son. The owners were moving and many of the Legos appeared to be circa 1980 vintage blocks that their kids had (eg, the old-style wheels with the metal axle that snaps into the 4x2 brick with the 4 holes and the innards for snapping in the wheel axles).

    While most of the bricks were pretty much the same as in some of the new "generic" brick sets, a few pieces like some windows and doors are not. I'm not a big Lego hobbyist, but my understanding is that a number of bricks (styles, colors, shapes, etc) are no longer made, and given the number of Star Wars sets I've helped my son assemble, there's probably an awful lot of oddball bricks only used in a handful of sets that would be handy to have without buying an entire set.

    Given the rise of rapid prototyping machines, will Lego ever allow anyone to custom-make bricks no longer made? I'm not sure how well the materials used in rapid protoyping would work as Legos (there's a certain springyness required, it seems) but it also seems like a market that could operate pretty quietly even if Lego didn't agree with it.

    1. Re:Will Lego ever license third-party fabriactors? by WillAdams · · Score: 3, Insightful

      I doubt that a fabrication machine will ever be able to create parts w/ the precision which Lego demands in their molds (tolerances are just 2 micro-meters, molds are discarded when they wear out, they use _tons_ of pressure to force the ABS plastic into every bit of the molds).

      That said, so long as the bricks don't infringe on any Lego trademarks (this varies by one's legal locality, see the article on the recent EU case http://arstechnica.com/old/content/2008/11/lego-loses-eu-trademark-on-bricks-prepares-for-clone-wars.ars ), one would be able to make them (w/in the tolerances of one's fabrication machine).

      For an example of what it's like trying to use bricks which are _not_ manufactured to Lego tolerances, just pick up a Mega Bloks set (they're cheap) --- they sort of fit, but not w/ the precision of Lego bricks and they don't stay together as well.

      --
      Sphinx of black quartz, judge my vow.
  12. Yo Dawg... by DarthBling · · Score: 1

    ...I heard you like building things out of legos, so we gave you instructions on how you can build something out of legos that will build you something out of legos.

    1. Re:Yo Dawg... by asCii88 · · Score: 1

      mod parent funny

  13. reminds me of a game by Anonymous Coward · · Score: 0

    reminds me of that autism simulator from two weeks ago (minecraft)

  14. Name? by Cytlid · · Score: 1

    Maybe they should have called it "GCC"...

    --
    FLR
  15. Proves... by yoshi_mon · · Score: 2, Interesting

    On a macro scale, with blocks that are built for children, we have something like this. Wow.

    Look, I know that on a molecular level you have to deal with all sorts of physics that would not apply in what we see here but dammit I am hopeful that we are getting closer to having nano-bots. Of all the tech that I think we can do this is the stuff I think we could see in a lifetime.

    Time travel...we don't have the energy yet to close the loops or so Hawking says. FTL travel...the physics that I know seem to say it's in the same league as time travel. The energy we currently view as high is not even in the same league as what we would need to have these types of tech. And as such there is very little research into such ideas.

    And that is fine. We do need to have a stable planet such that we can actually progress. And as such the research into what we can do on our scale is very valid. Lets make some nano-bots that clean out our arterial walls and such. Do it. Go.

    --

    Really, I know what I'm doing...Ohhhh, look at the shiny buttons!
    1. Re:Proves... by CraftyJack · · Score: 5, Insightful

      Slow down. He made a pick-and-place machine out of legos, and you're up to time travel and nanobots. It's nifty, but we're not really in the Hawking realm here.

    2. Re:Proves... by mcgrew · · Score: 1

      dammit I am hopeful that we are getting closer to having nano-bots.

      Me, too. I can see a time (sadly, after I'm dead) when everything is made of nanobots and made by nanobots, including nanobots. Your entire house made of nanobots that could morph into any design you wanted it to. Your bed would dissolve into the floor after you got up. Each nanobot couuld have a one pixel LED display, no light fixtures needed; your ceiling glows.

      The only property would be land, and intellectual "property". You would pretty much have a Star Trek replicator.

  16. What a let down by SpeedBump0619 · · Score: 1

    I seriously thought this was about a 3D printer that could print the blocks, but instead I'm presented with a pretty unimpressive assembly machine.
    1. Build Lego assembly machine
    2. ???
    3. Profit!

    Call me when you've got something to custom fabricate Lego blocks.
    1. Build Lego block printer
    2. Sell one to every Lego store on the planet
    3. Profit!

    1. Re:What a let down by i+ate+my+neighbour · · Score: 1

      I'm pretty sure printed bricks will cost a lot more than the original, mass produced ones. also of inferior quality(smoothness etc.)

    2. Re:What a let down by ShieldW0lf · · Score: 1

      I've got something to custom fabricate Lego bricks sitting on my desk. I've been using it to print parts for a geodesic dome to donate to the urban garden society as a greenhouse, but it will make Lego. I got sick and tired of waiting for Makerbot parts to come into stock over a year ago and built one myself by hand. Get off your ass... the only thing holding you back is you.

      --
      -1 Uncomfortable Truth
  17. Meh, I'll worry when it can... by jeffb+(2.718) · · Score: 1

    ...build hardware that runs the MLCad package.

    And I'll panic when it can write, build, and deploy MLCad from scratch.

  18. He's thinking too small by Anonymous Coward · · Score: 0

    Legos? Clearly we need a human replicator machine, one that could say whip you up a girlfriend... then we'd be in business. Realistic robots would be an acceptable compromise...

      "I love you, PHILIP J FRY"

  19. They already exist by TiggertheMad · · Score: 1

    I doubt that a fabrication machine will ever be able to create parts w/ the precision which Lego demands in their molds (tolerances are just 2 micro-meters, molds are discarded when they wear out, they use _tons_ of pressure to force the ABS plastic into every bit of the molds).

    I am a serious Lego collector, and not only are you wrong about it ever being possible to do this, there are people already doing this. Go checkout Brickarms or Brickforge for some examples of high quality third party accessories.

    To date, Lego has chosen to ignore them legally, since they have been very respectful of not stepping on Lego's core business or violating their IP. I am sure that they would not be so considerate if you made copies of their unique elements.

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
    1. Re:They already exist by WillAdams · · Score: 1

      The brickarms site isn't making their products on a fabrication device though:

      from their FAQ:

      http://www.brickarms.com/FAQ.aspx

      `` I used a 3D parametric modeling program , which produced CAD files. A mold maker then used these files to program a Computer Numerically Controlled (CNC) milling machine to cut cavities into both halves of the mold. When the cavities are ready, he uses an expensive injection molding machine to inject hot ABS plastic (the same plastic used by LEGO®) into the mold with 90 tons of pressure.''

      Given that Brickforge has an FAQ which says:

      ``We are celebrating continuing growth which means shoppers will occasionally find products out-of-stock. To assist customers we have implemented a back-in-stock notification system which allows you to receive an e-mail message the instant an item is back in stock. You should also frequent the BrickForge forums for special stock announcements. We will not respond to correspondence inquiring when certain items are back in stock. Generally, items that are not listed as Limited Editions or retired are restocked within 45 days.''

      They also seem to be molding their pieces, not producing them one at a time using a fabricator --- for an example of an on-line company which does this look at www.shapeways.com:

      which has a rather limited precision in comparison to Lego bricks:

      http://www.shapeways.com/forum/index.php?t=tree&goto=1339&#page_top

      ``The printer resolution goes to about .1mm, but the material can change it slightly. Overall, .5 should be fine, just make sure that they are not any sort of support walls or they may get broken during shipping or printing.'' .1 mm == 100 micrometers

      So I believe you need to retract your claim that I am wrong.

      William

      --
      Sphinx of black quartz, judge my vow.
  20. The machines have yet to surpass us... by Anonymous Coward · · Score: 0

    The machines won't take over until they surpass us and solve one problem that even mankind hasn't solved: what to do when you're missing that one last piece.

  21. Still Wrong by TiggertheMad · · Score: 1

    If by fabrication device, you mean a 3d printer, then you are correct about Brickarms not using one.

    However, you are still wrong. There are people that have posted images of Lego compatible parts that they have created using 3d prototyping machines on Brickshelf and flikr. I don't have any URLs handy, but the last one I saw was custom race car parts.

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
  22. The prototyping machines != Lego's parts precision by WillAdams · · Score: 1

    I specifically noted in my post that one could make such parts ``one would be able to make them (w/in the tolerances of one's fabrication machine)'' --- what isn't happening, and I doubt will ever happen --- is making them w/ 2 micrometers of precision as Lego does for their bricks.

    The Shapeways link notes ``The printer resolution goes to about .1mm, but the material can change it slightly. Overall, .5 should be fine, just make sure that they are not any sort of support walls or they may get broken during shipping or printing.'' .1 mm == 100 micrometers

    So the fabricators are off by a factor of 50 from the precision which Lego invests in their bricks.

    Find me a spec sheet for a fabricator which claims a precision measured in single digits of micrometers and I'll retract my statement, but until then I stand by it.

    William

    --
    Sphinx of black quartz, judge my vow.