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NASA Makes 3-D Printed Wrench Model Available

First time accepted submitter smsiebe writes You can now download a piece of history by getting the designs for the wrench that NASA recently emailed to astronauts on the ISS. The wrench took four hours to complete and was the first "uplink tool" printed in space. You can check out a number of models and images on NASA's 3D Resources site.

99 comments

  1. Big deal by Anonymous Coward · · Score: 0, Insightful

    I can buy Tang at the grocery store too and I don't feel particularly historic.

    1. Re: Big deal by Anonymous Coward · · Score: 1

      Yeah but now you can pay out the ass for a 3d printer and download a wrench and wait 4 hours to get your wrench.

    2. Re: Big deal by Anonymous Coward · · Score: 1

      Gasp... The future... It is here... And the game, it has changed. All the games, actually. Now that we can 3D print wrenches in the upper atmosphere, I am, as I type, packing my steamer trunk for Mars!

    3. Re: Big deal by fuzzyfuzzyfungus · · Score: 1

      Yeah but now you can pay out the ass for a 3d printer and download a wrench and wait 4 hours to get your wrench.

      I'd be the first to make snide comments about some of the 3d printing hype (some of it, the sort that fails to answer "and we wouldn't do this with machine tools why exactly?", there are a number of genuinely impressive applications, albeit mostly involve additional finishing steps or the really expensive printers); but 'earth orbit' is one of those places where I can imagine being willing to wait for printing rather than ordering from harbor freight and waiting for shipping.

      A problem better solved by standardizing fasteners, of course; but if somebody has already opened that can of worms for you, and you need an oddball tool in a space and shipping constrained environment, I can think of worse fates than using a plastic one.

    4. Re:Big deal by Ukab+the+Great · · Score: 1

      To feel historic you must use the Tang to wash down the package freeze-dried ice cream you bought at a museum..

    5. Re:Big deal by ColdWetDog · · Score: 1

      I can buy Tang at the grocery store too and I don't feel particularly historic.

      An .stl file for Tang ought to be interesting.

      --
      Faster! Faster! Faster would be better!
    6. Re: Big deal by __aaclcg7560 · · Score: 1

      All the games, actually.

      I'm looking forward to printing all the fantasy chess pieces I couldn't afford in the game shop when I was lee lad.

    7. Re:Big deal by Anonymous Coward · · Score: 0

      Download a dildo for your ass

    8. Re:Big deal by Anonymous Coward · · Score: 0

      What for? You'd still need to bring the sugar, color and ascorbic acid supplies for the Irrelevant Space Sideshow's "3D printer".

      "LOOK! GASP! IT'S THE FUTURE! A stepper motor has placed sugar and colorant into a pouch... BY COMPUTER COMMAND!! IT'S THE FUTURE!"

      I propose you use a SKU instead and just bring extra pouches of Tang next time.

    9. Re: Big deal by Ol+Olsoc · · Score: 1

      I'm looking forward to printing all the fantasy chess pieces I couldn't afford in the game shop when I was lee lad.

      You were the layer of yeast on the bottom of unfiltered beer bottles?

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    10. Re:Big deal by sumdumass · · Score: 1

      Museum?? They sell it at outdoor stores in the camping and hiking sections with brand names now. No novelties there any more. And yes, just like at the museum (COSI in Columbus Ohio) , i had to try it. Not bad.

    11. Re: Big deal by Anonymous Coward · · Score: 0

      Still cheaper than those Halliburton wrenches at 300k/ea iirc. Sell to the military at $250k and everybody wins.

  2. 3 in lb? by Anonymous Coward · · Score: 1

    Taken from the label on the handle. That's not much of a wrench. I could probably tighten something to 3 in-lbs with my fingers. Nice proof of concept though.

    1. Re:3 in lb? by Anonymous Coward · · Score: 1

      I have no idea what a in-lb is, I *could* convert it to Nm but anyway..
      What I wanted to say is, it comes with a known torque cutoff and I find this rather a nice feature, not a bug.

    2. Re:3 in lb? by Frosty+Piss · · Score: 1

      Nice proof of concept though.

      Indeed!

      I think that at this point in the technology, materials science in not yet at a place where a metal object built as a composite of liquid or powdered material could take the same stresses that a drop-forged or milled object can. But it's a matter of time...

      --
      If you want news from today, you have to come back tomorrow.
    3. Re:3 in lb? by fuzzyfuzzyfungus · · Score: 1

      On the plus side, space construction probably doesn't demand a whole lot of really heroic fastener work(but the gloves make 'finger tight' pretty clumsy if you are outside). In absence of gravity, all sorts of comparatively feeble joints become acceptable, so long as you don't damage things trying to put them together("Yeah, I um, stripped the mounting hole for the habitat module...") and the assembly keeps things from floating away.

      If anything, I'd imagine that space tools are more likely to emphasize being able to set maximum torque, to keep people from screwing up delicate, lightweight, functionally irreplaceable, parts, rather than emphasizing the sort of power you want when fighting with a rusted assembly or something binding under stress.

    4. Re:3 in lb? by Deadstick · · Score: 1

      The same could be said for flying car science.

    5. Re:3 in lb? by 0123456 · · Score: 1

      The same could be said for flying car science.

      I'm 3D printing my flying car right now. It's just the printer is going to take thirty years to finish printing.

    6. Re:3 in lb? by Anonymous Coward · · Score: 0

      Absence of gravity? You realize the Irrelevant Space Skid is only 400km up and thus is subject to 90% of the surface force of gravity?

    7. Re:3 in lb? by Frosty+Piss · · Score: 1

      The same could be said for flying car science.

      Flying cars don't solve any pressing issues. In fact just the concept creates many more problems than it could ever "solve".

      --
      If you want news from today, you have to come back tomorrow.
    8. Re:3 in lb? by ColdWetDog · · Score: 1

      Absence of gravity? You realize the Irrelevant Space Skid is only 400km up and thus is subject to 90% of the surface force of gravity?

      It's that last 10% that really gets you.

      --
      Faster! Faster! Faster would be better!
    9. Re:3 in lb? by ColdWetDog · · Score: 2

      Flying cars don't solve any pressing issues. In fact just the concept creates many more problems than it could ever "solve".

      It would certainly solve problems. It would finally get people around here to shut up about the flying cars already.

      --
      Faster! Faster! Faster would be better!
    10. Re:3 in lb? by dbIII · · Score: 1

      powdered material could take the same stresses that a drop-forged or milled object can

      Among other things the Rolls Royce Trent engines in the Airbus A380 have a turbine disk made from metal powder. Of course the secret is that it's effectively drop-forged metal powder (hot isostatic pressing) which then is cleaned up to the correct tolerances with milling.

    11. Re:3 in lb? by Hognoxious · · Score: 1

      Take a 450 page A5-ish paperback. Hold it in front of you with the spine horizontal & facing you, gripping it at the extreme left or right.

      4 inches times 12 ounces.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    12. Re:3 in lb? by fuzzyfuzzyfungus · · Score: 1

      True; but it's all in the same state of free-fall, so the gravity is effectively irrelevant for the purposes of stress on the structure. The amount of atmosphere that it is travelling through, on the other hand, might be enough to make itself felt.

    13. Re:3 in lb? by Anonymous Coward · · Score: 0

      A5-ish

      You mean half-letter-ish, right?

    14. Re:3 in lb? by drinkypoo · · Score: 1

      I think that at this point in the technology, materials science in not yet at a place where a metal object built as a composite of liquid or powdered material could take the same stresses that a drop-forged or milled object can.

      You can mill an object out of wood, or you can 3d print an object in Inconel. Many cheap tools (notably ratchets!) are just cast, and they work just fine unless a fastener is rusted on, or was grossly overtorqued to begin with.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    15. Re: 3 in lb? by Anonymous Coward · · Score: 0

      If you call the flying car KIT and give it a soundtrack, it can solve all the problems.

    16. Re:3 in lb? by bn-7bc · · Score: 0

      Google is your friend 3inlb is .34 Nm

    17. Re: 3 in lb? by sumdumass · · Score: 1

      It will also make the manifold boost from the turbo act like rocket thrusters helping you get off the ground.

      I looked for years to find those LEDs that made a whorring noise (sound effects) when they light up but i think that was all hollywood.

    18. Re:3 in lb? by Hognoxious · · Score: 1

      In that approximate ballpark, or thereabouts.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  3. Let's Be Honest by Frosty+Piss · · Score: 5, Insightful

    When International Space Station Commander Barry Wilmore needed a wrench, NASA knew just what to do. They "e-mailed" him one.

    They make it sound like "Woah! I need a wrench and I don't have it! What ever will I do?"

    Clearly, however, this was a fully planned experiment, and it is doubtful that the wrench was used a the sole tool for some important fix. The wrench will come back with the crew and be studied in a laboratory as I'm sure was planned from the beginning.

    Impressive none the less, but let's be honest here.

    --
    If you want news from today, you have to come back tomorrow.
    1. Re:Let's Be Honest by Anonymous Coward · · Score: 4, Funny

      This is a "3D printing has brought the entire species to the post-scarcity/replicator era" story. There is no place for reality, rationality, or skepticism.

      Please report to your nearest Luddite reprogramming booth, itself naturally 3D printed.

    2. Re:Let's Be Honest by blue+trane · · Score: 0

      The artificial scarcity of money is the chief factor holding us back from a post-scarcity society. We don't have a production capacity problem.

    3. Re:Let's Be Honest by CrimsonAvenger · · Score: 1

      it is doubtful that the wrench was used a the sole tool for some important fix.

      Given that the "wrench" was really a socket driver (or so it appears from the pic), no, it wasn't the sole tool - the socket must've been up there.

      Note the label on the driver, by the by 3 inch-pounds torque. It's a wrench for a very delicate piece of equipment, looks like.

      Oh, and I can well believe they didn't have a torque wrench on hand for something like that. Not like you need a 3 inch-pound wrench all that often....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    4. Re:Let's Be Honest by Deadstick · · Score: 2

      The artificial scarcity of money is what makes it money.

    5. Re:Let's Be Honest by blue+trane · · Score: 1

      Is that why the private sector created some $76 trillion in 2013, according to the BIS? To keep it scarce for everyone but themselves?

    6. Re:Let's Be Honest by Anonymous Coward · · Score: 0

      Your comment is in reference to what?

    7. Re:Let's Be Honest by Anonymous Coward · · Score: 0

      Ayn Rand wrote that "Money is the material shape of the principle that men who wish to deal with one another must deal by trade and give value for value."

      So tell me how it's possible for the robber barons to sit on piles of "the principle of trading value for value"?

      It's scarce because it's a material thing-- even though most of it is now electronic. Money which is not circulating is useless; it's potential potency waiting for someone to put it into action. It's like having a huge battery connected to a circuit which is switched off. Nothing interesting happens.

    8. Re:Let's Be Honest by 0123456 · · Score: 3, Interesting

      The artificial scarcity of money is the chief factor holding us back from a post-scarcity society. We don't have a production capacity problem.

      Cool. Since we have unlimited production capacity, I want my own Death Star in five minutes. Thanks.

    9. Re: Let's Be Honest by Frosty+Piss · · Score: 4, Insightful

      Ayn Rand wrote...

      And that's where I stopped reading...

      --
      If you want news from today, you have to come back tomorrow.
    10. Re:Let's Be Honest by dbIII · · Score: 1

      I see the main potential is of having a part library and being able to bring up of of many special use tools designed earlier.

    11. Re: Let's Be Honest by Anonymous Coward · · Score: 0

      I'm pointing out her definition is inadequate, savvy?

    12. Re: Let's Be Honest by Anonymous Coward · · Score: 0

      Her definitions of most things are inadequate.

      Look at how she defined a "half-hour speech" in Atlas Shrugged.

      Not only does it take more than a half-hour just to read, if you're so brain-dead you hadn't gotten the point by then, you weren't going to get it.

      One of the VERY few parts of a book - any book - that I've ever simply skipped over, regardless of the author's philosophy.

    13. Re: Let's Be Honest by bigtrike · · Score: 1

      You're supposed to be under the influence of benzedrine while reading.

    14. Re: Let's Be Honest by Anonymous Coward · · Score: 0

      Agreed. Could you address the point about money, too?

    15. Re: Let's Be Honest by Frosty+Piss · · Score: 1

      Anonymous Coward ...

      ...And that's where I stopped reading...

      --
      If you want news from today, you have to come back tomorrow.
    16. Re: Let's Be Honest by sumdumass · · Score: 1

      You can choose to be purposely ignorant if you want but i'n not sure it is a good idea to advertise it.

    17. Re:Let's Be Honest by sumdumass · · Score: 1

      Have you not learned anything? Those rush jobs on death stars always result in some hole they forget to cover and it gets blown up with one shot.

  4. Amazing design by Anonymous Coward · · Score: 5, Informative

    The actual design of the wrench is fantastic; it has two moving parts that are printed inside the grip, so it comes out of the printer fully assembled and ready to be used (or not used).

    1. Re:Amazing design by Anonymous Coward · · Score: 1

      I just printed it and it came out pretty nicely.
      As the original poster mentioned, it comes out of the printer fully assembled and ready to be used.
      In my case, I had to use another wrench to get the part which spins to move. The part which ratchets doesn't actually need to move -- it just needs to flex slightly.
      It took just under an hour to print.
      It only ratchets in one direction -- for tightening, but it actually works!
      It works with ordinary 3/8" square drive sockets. I'm sure they already have a 3/8" socket set on board, so this was just a test.

      Here is a link to a photo what my printer produced: http://www.kosselplus.com/images/issWrench.jpg

    2. Re:Amazing design by MobyDisk · · Score: 5, Funny

      I'm sure they already have a 3/8" socket set on board, so this was just a test.

      Actually they didn't. The Americans looked everywhere: they asked the Russians, Canadians, Brazilians, and Japanese, but all they could find were 9.5mm!

    3. Re: Amazing design by Anonymous Coward · · Score: 0

      They should hire this guy:
      http://m.youtube.com/watch?v=RFEY--Gp1D8

    4. Re:Amazing design by Anonymous Coward · · Score: 0

      It only ratchets in one direction -- for tightening, but it actually works!

      If you mirror-image it before printing, do you get one that will only loosen?

    5. Re:Amazing design by PPH · · Score: 1

      It only ratchets in one direction -- for tightening, but it actually works!

      So NASA will have to e-mail them a "lefty-loosey" wrench to disassemble something? Why didn't they design it with a square drive on both sides of the wrench? I'd give them a C+ in Industrial Design 101.

      --
      Have gnu, will travel.
  5. Formerly Printed by CIA by Anonymous Coward · · Score: 1

    So THAT'S where the CIA gets their untraceable $5 wrenches.

    captcha: corrupts

  6. Re:3D Printed Dildoes by Anonymous Coward · · Score: 0

    In space, nobody can hear you moan.

  7. Re:3D Printed Dildoes by Anonymous Coward · · Score: 0

    Just send this link to the astronauts. They will hear each other moan when they click it.

  8. Re:ISS by Anonymous Coward · · Score: 0

    Oh shit. You are so sad. "Russia and China are criminals! Quick! End them!". Go nuke yourself.

  9. Mod parent funny by Anonymous Coward · · Score: 0

    This is funny

    1. Re:Mod parent funny by Anonymous Coward · · Score: 0

      Sorry, already posted

  10. One Can Design for the Material (sometimes) by Irate+Engineer · · Score: 1

    If you know you are limited to a certain material, in some instances you can modify the part design to do the intended job with that material. In some instances you absolutely need a certain surface hardness or thermal properties or whatever which prevents this. But you can redesign a wrench for requisite stiffness and strength, it just won't look like a steel wrench and might be too bulky and unwieldy to use in certain places.

    --

    Left MS Windows for Linux Mint and never looked back!

    Vote for Bernie in 2016!

  11. Transporter malfunction by paramour · · Score: 1

    If NASA had used a 3D scanner to scan in an existing wrench, instead of designing a new one, then they could claim, in some rudimentary way, to have deployed the first instance of a star-trek style transporter. They still can.

    1. Re:Transporter malfunction by 0123456 · · Score: 2

      If NASA had used a 3D scanner to scan in an existing wrench, instead of designing a new one, then they could claim, in some rudimentary way, to have deployed the first instance of a star-trek style transporter.

      Only if they destroyed the original wrench after they 'transported' it.

    2. Re:Transporter malfunction by Anonymous Coward · · Score: 0

      It functions more like a rudimentary replicator, especially when they can make as many copies of that wrench as they have the resources. However, I do not suggest to eat any food that it makes for now.

  12. Re:Need a wrench by Irate+Engineer · · Score: 2

    Cost to get $1 metal wrench to space station: $10,000-$20,000. Oh, and you have to wait until the next launch, which might be weeks off. Developing a capability to make your own tools in space: priceless.

    --

    Left MS Windows for Linux Mint and never looked back!

    Vote for Bernie in 2016!

  13. Re:Need a wrench by Irate+Engineer · · Score: 4, Insightful

    $10,000-$20,000, same as the first one. It currently costs about $10,000 per pound to get anything to low Earth orbit.. Doesn't matter if it is a wrench or a can of ham salad or toilet paper - $10,000 per lb. You have to put the thing on a pricey rocket to get it to orbit. If you go to Mars, things get even more expensive.

    This work that they are doing on the "Irrelevant Space Stopgap" is the stuff that they need to figure out before we can get to Mars or beyond. We have to sort out parts and tools and make sure that the astronauts can get their hands on what they need to get the job done and go to these places. Yes, it's a lot of seemingly basic and mundane crap, but it needs to be done and it is being done on the ISS today. There isn't a Tractor Supply on Phobos (not to my knowledge, anyway).

    --

    Left MS Windows for Linux Mint and never looked back!

    Vote for Bernie in 2016!

  14. Re:Need a wrench by Anonymous Coward · · Score: 0

    Cost to bring almost any small spare part to space? 3d printer + materials. Doing it in microgravity? Priceless.

  15. Re:ISS by ColdWetDog · · Score: 1

    Didn't get that model of the Enterprise for Christmas, did we?

    --
    Faster! Faster! Faster would be better!
  16. Re:Need a wrench by Anonymous Coward · · Score: 0

    > No one's going to Mars because someone made a Dollar store trinket 400km up.

    We're not going to get to Mars by shipping a crapton of stuff there. We'll get there by shipping small automated factories that can make what we need from local materials well before we arrive.

    Our materials and manufacturing will have to advance significantly before we can make a several-month journey in space. We'll need to work out all those problems first, which is exactly what we're doing now.

    Do you think men would have gone to the Moon (and yes, they actually did) if we hadn't worked out rendezvous and docking first?

  17. look on the insides by gl4ss · · Score: 1

    can you stick your finger into square hole and turn like that though.
    anyways, maybe they only need just that and only that.

    the wrench looks dull if you look at just the image but actually it has a spinner/oneway lock(dunno english name for that) inside, that you can not see in the pictures - the mechanism is printed in place. I was checking it out because there's the on circle on the surface that shows there's something funny going on. also, for one piece functionality print, your 3d printer better be calibrated correctly to print this one out.

    --
    world was created 5 seconds before this post as it is.
    1. Re:look on the insides by Anonymous Coward · · Score: 0

      actually it has a spinner/oneway lock(dunno english name for that) inside

      Ratchet.

  18. of course by Osgeld · · Score: 1

    the machine and raw materials weighed and cost significantly more than just putting a 12.99 socket set in the fucking toolbox

    BUT 3D PRINTING RARRRWWARRROOT!

    stupid

    1. Re:of course by oodaloop · · Score: 1

      Yeah, it would obviously make much more sense to just send every tool imaginable and spare parts for every possible thing that could ever break instead of one small 3D printer. You're so smart! If only NASA had consulted with you first.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    2. Re:of course by PPH · · Score: 1

      send every tool imaginable

      Smart people in NASA would design the ISS (and any other systems needed to be maintained in space) using a limited number of fastener types and sizes. This reduces the tool inventory needed.

      --
      Have gnu, will travel.
    3. Re:of course by Anonymous Coward · · Score: 0

      I somehow doubt russians and others designed their parts to need wrenches with torque in inch pounds.

    4. Re:of course by Anonymous Coward · · Score: 0

      yes cause its impossible to get anything metric in the united states, especially when your a government agency

  19. Re:Need a wrench by Anonymous Coward · · Score: 1

    > Going to the Moon was a one-shot stunt with no practical uses.

    Ah yes, if only there were primitive moon-tribes with caverns of gold for us to bring back...

    And technically, it was a nine-shot stunt!

  20. Re:Need a wrench by Anonymous Coward · · Score: 0

    $10,000-$20,000, same as the first one. It currently costs about $10,000 per pound to get anything to low Earth orbit.. Doesn't matter if it is a wrench or a can of ham salad or toilet paper - $10,000 per lb. You have to put the thing on a pricey rocket to get it to orbit. If you go to Mars, things get even more expensive.

    Cost to get the material for the 3D-printer is going to be the same.
    The thing this is useful for isn't for the things that you know that you need, but for the things that you didn't think of, alternatively the things that you know could be useful but aren't entirely sure about.
    Spare parts for things that aren't supposed to break. 3D-printing means that you don't have to store one of each.

  21. Yes by koan · · Score: 1

    Waste your PLA.

    --
    "If any question why we died, Tell them because our fathers lied."
  22. Re:Is it to replace the one that WOMAN lost? by Anonymous Coward · · Score: 0

    Let's see... ME from MIT, USN Captain, USN Salvage Officer and USN Salvage diver, USN Surface Warfare Officer, two STS missions, 5 EVAs of ISS construction work.
    I realize that can't possibly compare with you getting that bonus life in the couch game of your choice, and your being the first on your block to try Mountain Dew flavored Doritos, but it's still not a bad resume.

  23. Re:Need a wrench by Anonymous Coward · · Score: 0

    That's right. If you're trying to play the old "space spinoff" card indirectly, you could just give the money directly to engineers and scientists to invent cool stuff, no one actually had to go to the Moon.

  24. I printed one! by IDreamInCode · · Score: 1

    Printed on Christmas Eve and showed it off to the family at Christmas. They were impressed. https://www.reddit.com/r/3Dpri...

  25. publicity stunt ? by Anonymous Coward · · Score: 0

    am i the only one thinking, this is some sort of publicity stunt by NASA ?
    I have nothing against 3D printing, but I'm intelligent: the right tool for the job
    I mean, they really didn't have an adjustable wrench or the right tool ?

    1. Re:publicity stunt ? by sumdumass · · Score: 1

      Publicity might have a bit to do with it but remember that endeavor mission which they lost the tool bag and people watch it burn up on reentry?

      Mistakes can and has happened. Its a particularly challenging work enviroment usually performed by novices on the particular application of repair with distractions all around. There is likely a practical application for it also.

  26. New labeling requirement by Anonymous Coward · · Score: 0

    "Made in Space"

  27. Re:Need a wrench by Urkki · · Score: 1

    you could just give the money directly to engineers and scientists to invent cool stuff

    Have you ever actually worked with R&D engineers and scientists? They don't convert money into cool stuff. They convert cool problems into cool stuff, given sufficient resources to allow solving the given cool problem.

  28. Pfft by Anonymous Coward · · Score: 0

    A plastic wench? Must not need to be really tight.

  29. Mod parent down by Anonymous Coward · · Score: 0

    Get off Slashdot, you bible thumping coneservitive.

  30. I printed it. by mark_reh · · Score: 1

    It was not really a useful wrench. It was a publicity gimmick. 3 in-lbs is finger tight. You don't need a wrench for that.

    The design was poor- torque applied to the socket would apply shearing force to the square post on the wrench and tear the layers apart. There was a single pawl engaging the ratchet wheel which means that tiny little bit of plastic had all the force applied to it. Also, the ratchet only turned in one direction- tightening a nut but not loosening. After a relatively few turns, the pawl started to slip and the wrench became even more useless. The pawl was difficult to print because of the tiny print area on the printer's bed. There wasn't much helping it stick to the bed. I had to restart the print a few times before I got it to stick.

    A smarter way to make a wrench would have been to have multiple pawls engaging the ratchet wheel to reduce force applied to any one of them, and there should have been a square hole in the ratchet wheel and a second, square cross section part to fit in the hole printed laying on its side. You would put the square peg into the hole and it would be long enough to allow a socket to be put on either side of the wrench- one side for tightening and the other for loosening a nut.

    NASA really needs to have contests for this sort of thing. They'd get even more publicity with that.

  31. Re:Need a wrench by Irate+Engineer · · Score: 1

    Cost to get the material for the 3D-printer is going to be the same.

    True, but if you can recycle the materials, you actually get to reutilize materials over and over again vs. launching a new batch from the ground. Part breaks? Toss it in the hopper and print a new one.

    Also note that, for very long term exploration, the use of local materials is also being studied. Think concrete on other planets, that sort of thing.

    --

    Left MS Windows for Linux Mint and never looked back!

    Vote for Bernie in 2016!

  32. Re:Need a wrench by Anonymous Coward · · Score: 0

    I wouldn't play the "space spinoff" card, because I don't believe in it. However, I do think going to the moon was worth it just as an historical achievement. It really demonstrates our ingenuity and exploratory spirit as a species. Even if we go extinct in the next 100 years, one day another intelligent species may arise and find our old hardware on the surface of the moon. That would be like finding Babylon's ruins.

    Also, don't forget one big rationale for the project was that in the nuclear age, a moon base might be important militarily. Of course, that didn't come to pass, but the rockets we learned how to build in the process were certainly strategically important. Was it misguided? Possibly. We don't need to go to Mars to develop revolutionary new manufacturing and energy production techniques, but it does provide a challenge.