I assume that a pistol would be much easier to smuggle than a nuclear bomb.
For this to be more than just a gimmick, UPS needs to offer a 3D scanning service as well.
Which is why I really hope to see Project Tango in the future connect direct with 3d printing.
Scan your scene with your phone, click to print, pick the article in question out of the scene (with simple cutting tools and smart select), assign a material to it (with the app doing its best to choose defaults), possibly apply some filters (welding broken pieces together, for example) or stretch it a bit in different directions to meet your needs if you choose, pick your printing service, pick any other details such as surface treatments and the like, and it gets uploaded, you get billed, and your print arrives in the mail when it's ready.
iMaterialize has a material called "Rubber-like", which is a plastic called TPU 92A-1.
Just like PCs what matters has shifted.
On the desktop speed is becoming less important while video is becoming slightly more important thanks to GPU compute being used for transcoding video and of course games.
Laptops cpu speed is less important than display quality, graphics performance, battery life, and weight.
Oh phones it is really all about the screen and battery life for most people.
CPUs right now are fast enough for majority of people. Of course there are users that need the fastest CPU, GPU and so on and others that need the lowest possible power draw.
While I agree with you, I think it's important not to overgeneralize today's methods of 3d printing with being the only methods possible.
For example, I've often speculated a lot about the prospect of using thermal spraying as a printing method. That is, you have any sort of powder or other fine material, fed into a chamber with the Venturi effect. Therein a custom mix of air and fuel is injected at specifically chosen partial pressures. Consequently, depending on what material you're using, you can choose the impact speed and temperature of the particles, anywhere from "cold" to thousands of degrees and anywhere from less than 1 meter per second up to a thousand or more. The size of the nozzle determines flow rate, so you could swap between different print heads for bulk vs. fine detail. You're essentially unlimited in what materials you can use. You could, for example, print isotropic fiberglass composites by alternately spraying fine chopped fibers and a resin. You could even do so by spraying simple quartz sand at high enough temperatures, fast moving molten sand in the air forms fiberglass. Your resin could be a thermoset powder heated during travel, an epoxy that reacts after being mixed on impact, or a wide variety of other possibilities. High velocity spraying of metal powders produces metal structures stronger than simple casting. You could spray at low velocity chemicals for the filling of things like capacitors or resistors. Thermal spraying is often as it stands used to apply durable clear coatings to materials to protect them, so clearly transparency is no problem. And any printer built around the principle of launching varied small particles at high speeds could polish, sandblast, coat, engrave, paint, or do whatever other surface treatments you wanted. It could build scaffoldings and then obliterate them afterwards. And on and on down the line.
It still wouldn't let you do fine detail, though (if anything you'd struggle to get as high detail as with conventional 3d printers). For detail work you'd have to add in a lithography setup. Some types of feed inputs would require refrigeration to remain as dusts. And of course some things would still be easiest assembled with literal assembly, aka, a robotic arm or two would be quite useful. So we're getting more and more complicated here.
Do I think such a thing is right around the corner? Of course not. Could my conception turn out to not work well at all as a 3d printer? Quite possibly - as far as I know, nobody's ever tried. But I'm just pointing out, when talking about future tech, you shouldn't evaluate it based on how today's tech works.
I expect better from the tech community. If the tech world can rally around the destruction anyone that says anything homophobic why do they tolerate someone that called Neil Armstrong a liar less than a week after his death?
Problem will be printing small things, atomic scale assembly, not just squirting some plastic parts
And yet you want to 3d print a fuel cell for a car? How do you plan to 3d print a PEM?
At least 3d printing a battery might be plausible if you have a 3d printer that can take an extremely wide range of materials (not a li-ion battery, though, you run into the same sort of membrane problems.. I really doubt there's any technology that will allow you to just jet down a membrane material and have it allow through your specific desired ions, at a sufficient flow rate, without leaks)
And where on earth are you getting that printed titanium parts are cheaper than non-printed? Have you ever priced titanium printing? iMaterialise, for example, offers it. A 2x2x4 cm bounding box with a mere 1 gram of titanium (picture how little that is that is compared to a plane) costs a staggering $124. Titanium laser sintering printers are slow energy hogs that cost a king's ransom and even titanium powder itself is absurdly priced compared to bulk titanium. And no, the stats aren't better, they're slightly worse for the exact same shaped part. Maybe you can make a more optimally shaped part and that'll allow you to get better performance, but in terms of raw material properties, it's unimpressive.
[A] single rich man's yacht can literally motor right up the Chesapeake and detonate a bomb capable of wiping out DC without ever touching american soil and thus not subject to any nuclear scans or customs searches.
Sure, customs wouldn't bother scanning the yacht, but that's because the CIA would have intervened before it even got anywhere near the US.
One or two nukes will not make much; even one nuke per US major city (1-5k) will probably not make Africa or Australia inhabitable.
Subtle troll is subtle. Well done.
The question becomes, how to get manufacturer buy in?
For starters, I think we need a certification mark for products, at the very least, to indicate that their parts are 3d printable (see above). But beyond that, I'm not really sure how to get manufacturer buy-in.
At least you could get the spare part. I have an electrolux refrigerator in Iceland which I bought used; one of the food compartment lids broke a week ago. Electrolux doesn't have a service center in Iceland and none of the other ones overseas will export to me, they said "just find someone local who sells electrolux refrigerators and order through them", except that none of the local retailers have been willing to.
And at least it's an Electrolux. What if it was a company that had gone out of business?
I want to see a certification label that manufacturers can put on their goods that certifies that replacement parts are printable and their models are in a free open database. Perhaps with multiple levels of certification - "Bronze" certifies that at least some parts are printable, "Silver" certifies that at least 60% of all parts are printable, "Gold" certifies that at least 90% of all parts are printable, and platinum certifies that 100% of parts are printable. That doesn't mean "printable cheaply" or "that a particular printing service will be able to do it" or that it's "no assembly required". Just simply that "it's conceivable that you could print it and make use of it, you have the necessary models available to you".
It's not just places like the Canadian arctic. Here in Iceland, if I want to import anything, after shipping and import taxes, I have to wait several weeks and pay usually over double the purchase price. 3d printing most definitely has its uses, if it can get mainstreamed.
I'd imagine NASA made that with laser sintering, which produces parts at highway robbery prices.
That said, I think you're being a bit overly pessimistic. 3d printing is rapid prototyping. Rapid prototyping is not mass production, but it's an incredibly useful thing in its own right. And some things are only ever needed in low volumes, mass production will never apply to them. Most consumers only think of consumer goods, but it's industry for which 3d printing can really shine. For consumers, it's really only useful for custom goods - not "white plastic chair", but "snow globe containing scuptures of my family" or "earrings based on my particular rare nerdy hobby" or whatnot. It could potentially be useful for small spare parts, too, if manufacturers would start keeping a universal a database - sometimes tracking down spare parts can be almost impossible (for example, you live in a non-serviced area, or the company goes out of business) or the delays insufferable.
I also think that it's possible to have a smooth continuum between 3d printing services and bulk manufacturing services. Picture a system where you design your part, whether for personal use or commercial sale. Each time you buy one, it's 3d printed. But you also have the option to prepay to tool for higher production volumes, on the same site. Maybe you have to wait for quotes, maybe the site automatically assesses tooling costs, times, and unit costs for you... whatever the case may be. The higher the volumes you pay to tool for, the lower the cost per unit you can get. And of course such a system could automatically recognize when others are already producing the same parts for something and use an existing production line, or where an existing line could be easily modified to produce your part, or could suggest modifications to your part to make use of an existing line... there's a wide range of possibilities. The service could, without the user having to pay for it, tool up to produce a part that many people are ordering in small quantities (paying back the upfront cost via the lower production cost, then slowly reducing the purchase price). Assembly services could be likewise made available to users. But the short of it is 3d printers could be part of a continuum of manufacturing possibilities made simple for users behind companies that deal with the actual contracting out for production, in exchange for a couple percent cut of the profit. The user is simply made aware of the possibilities and picks the ones that best suit them - whether it's "I want this custom bracelet" or "I want one of these bike gears... good, that works well, now make me 10.000 of them".
I have six or seven Debian servers, none of which have GUIs, let alone music players. Now it is true that a few servers do have audio capabilities on the motherboards, so an audio driver is being loaded. If I want so squeeze a bit more RAM out of the machines, I could disable those modules, but other than that they are very minimal installs. Basic userland, Samba, maybe LAMP and a few other useful tools and that's about it. I don't know how much smaller you can get without moving to embedded variants like DD-WRT, which have only a subset of a typical *nix user land. Far less useful as servers, mind you.