Given our current level of technology, would it be possible to build a shitty robot if we threw a trillion dollars at it? Something like Dai-Guard.
I know we need Lockheed Martin to finish that microfusion reactor they're working on before we can Gundam, but Dai-Guard runs off of D cells.
![Dai-Guard.08.(Dual.Audio).H264.[AM].mkv_snapshot_04.45_[2015.01.09_03.57.47].jpg](https://i.imgur.com/FD5TuaR.jpg "Dai-Guard.08.(Dual.Audio).H264.[AM].mkv_snapshot_04.45_[2015.01.09_03.57.47].jpg")
>>13671387
You calling my robot shitty?
>>13671387
>spend money
>to build something that DOESN'T kill poor people
Pffffffffffft
>>13671416
Daiguard is like that "Incompetent Turtle" Leo. It's so shitty that it loops back around into competence.
>>13671427
Well you could use it to "accidentally" do it
>>13671519
Plz do not bully Dai-Guard.
Let's be honest, if America builds a robot it's either going to perform at the Super Bowl half-time show or kill brown people.
>>13671838
Ina horrible future coming sooner than you think, it will do both at the same time.
>>13671838
Or kill dinosaurs
>>13671387
>could we build a Dai-Guard with our current level of technology
Yes.
>could it walk
Yes.
>without breaking
Yes.
>the ground?
Yes.
>could it punch
Yes.
>without breaking?
Nothing too hard.
>could it tear off its own fist and throw it
No.
I am a master science and engineer man, ask me anything else you want.
>>13672291
why couldn't it tear off its own fist and throw it?
>>13672291
How was your day?
What did you eat last monday?
How much did you sleep yesterday?
What's your favorite color?
>>13672315
Can you?
In this case, the material strength that would allow for all that arm swaying and punching would be greater than the mech's ability to generate that much tearing force. It would have to crunch a joint and twist and wrench the forearm off.
I ran the numbers.
>https://en.wikipedia.org/wiki/Square-cube_law
>When an object undergoes a proportional increase in size, its new surface area is proportional to the square of the multiplier and its new volume is proportional to the cube of the multiplier.
No.
And funny thing is, the Square-cube law isn't the real nail in the coffin, or at least not in the straightforward way. We don't have a reliable energy source. To power a robot that big, the engine would have to be enormous, and would need a yet bigger engine to move something that big, which would make it even heavier yet again.
Once we can miniaturize a decent power generator then we might be able to build something without breaking, but not before then, at least not without tethering the mech to a power plant
>>13672291
How high can a 150 ton mech jump without shattering its legs when it lands?
>>13671838
Your point is?
>>13672334
Give the skunkworks, like, 5 years.
http://www.lockheedmartin.com/us/products/compact-fusion.html
>>13672291
Could it run without destroying it's legs and shocks?
>>13672317
Good, except for the part where everyone went out for Chinese and didn't get me anything.
Cheese, crackers, and salami. Gonna eat that right now, in fact.
About 9-10 hours.
Orange.
>>13672334
I was waiting for the first Anon to show up who still thinks we make everything out of solid slabs of lead and steel.
>>13672353
>I was waiting for the first Anon to show up who still thinks we make everything out of solid slabs of lead and steel.
Would plastic make up a large part of the mech?
>>13672353
>solid slabs of lead and steel.
And what were you going to protect your mech with? Empty beer cans? Cardboard?
>>13672364
We'd probably cover it in the same stuff we use on the Abrams, whatever that is.
>>13672338
With current materials and a non-specialized design? 22 feet.
Form and surface material are important. A lot of shock can be taken out of the landing impact if the ground gives or your mech decelerates the rest of mass more slowly upon landing than just locking its legs.
Try it yourself: jump as high as you can and lock your legs straight in the air. Thud. Now jump again and try landing on your tippy-toes, but bend your knees and torso and the rest of your body as you land, going so far as to almost crouch. Bet you land without a noise.
>>13672352
It would require a prepared surface. Barring that, it would not run. Power-walking is more than adequate for most applications, but the leg and gait design could be altered to allow something akin to running if necessary.
>>13672371
Depleted Uranium.
68% heavier than Lead.
>>13672377
What if we put it on roller skates like knightmare frames?
>>13672364
Hey man, he said we can make it walk, he never said it could be an effective war machine
>>13672361
Plastic wiring insulation would be a not-insignificant amount of total weight. There will be a lot of empty space in the total design, which cuts down on the weight. The Eiffel Tower isn't a tall, solid metal pyramid for a reason, and we have I-Beams and pipes instead of solid metal rectangles for much the same.
>>13672364
Active area denial systems for human-made threats. For kaiju attacks, the optional Full Armor suite, whose alloys I can't tell you about.
>>13672384
DU is solid stuff and all but I think you wanna go lightweight with your materials for this.
>>13672399
Would it be more likely used for supply transportation purposes like the Power loader in Aliens?
>>13672390
It's difficult getting something that tall and top-heavy to roll on skates over the relatively small foot base it has. The feet have a tendency to slip out from under it, especially if the ground is grippy. You also lose too much speed to just smacking up against the air as you go, and the bent-over skater pose is a no-no.
That's why, as far as non-bipedal locomotion goes, we'll utilize a folding leg structure that transforms everything from the knee down into a ground-contacting motive surface. The "thighs" also fold on top of this, so the whole thing takes on a kind of Guntank appearance when scootering around.
>>13672420
Terraforming. Trucks are good enough for shipping things, even over short distances.
>>13672390
Problem with wheels in the feet is again, power. Wheels in the feet tend to be quite small, and the amount of power required to move something so heavy on those tiny wheels any faster than regular walking would require a considerably powerful, and thusly large, engine.
>>13671838
Why would americans want to murder themselveS?
When will we have aerial aircraft carriers like my anime and comic books?
>>13672404
That's what I was saying, a heavy mech would require an exponentially "too-heavy" power source, and was criticized for thinking "we make everything out of solid slabs of lead and steel". When asking for an alternative armor, DU was mentioned which is even heavier.
>>13672395
Well, you got me there.
>>13672151
And President Trump will be watching from a solid gold Ball.
>>13672471
Criticized for the square cube law invocation. /m/ has beaten it to death at this point. Yes, it's a thing, but surprise, materials science has been letting us do crazy things for a long while, and we get better at it every year.
I want to make an analogy about some dumb old-timey architect poopooing the possibility of skyscrapers and such, but we already had impressive churches by the time the square cube law was understood. New materials and novel shapes continue to allow for more impressive feats of engineering; we use progressively greater structural steels in place of iron, and buttresses didn't always exist. As we continue to explore nano-engineering of materials, we're only going to find crazier things.
People have scaled humans up to giant robot sizes and shown the weight, then said "but now it's made out of iron, so it's even heavier", as though our robot is going to be meat and water all the way through like a person, or be made of just some shitty metal. The fact remains that as of today, if you wanted to make a 1:1 scale model of a Gundam out of metal, with proper armor thicknesses and such, and had infinite funds to do so, it would be achievable. Even getting it to walk and slap things is possible. We have materials and electric engines sufficient enough to do that.
>>13671387
dai guard is very dai, but yes we could build a giant robot that punches things. although in reality having no weapons & just punching the crap out of things until your fists explode doesn't achieve much.
Honestly what would be a better alternative to Dai Guard when it comes to hetero fighting?
>>13672527
Bore-tipped missiles? You could mount a smaller version of the Knot Buster into a warhead and load up a squad of jets with a few dozen of them.
>>13672511
Yeah, but doing things like that with modern day materials is still not possible, I think. Materials ARE getting lighter and stronger, yes, but I don't think we're to that point yet. And again, my primary point was actually pointed to the increasing weight required of a current-technology sufficient engine, rather than the materials of the mech itself.
I'm sure it's possible, you'd probably need space frame internal structure and coke can thick "armor" to keep the weight down though.
>>13672547
We definitely have the materials to make something the size of a Gundam or Dai-Guard, and to make it walk.
Here is a 15 meter, 37 ton spider that doesn't move on its legs, but is instead held up from the ass by a single crane, with enough confidence to lift it above crowds and drive along the street. Just a shitty crane for an art project, holding 30+ tons up and away, which you know is more difficult than just holding things up (like holding a brick at arm's length in front of you is harder than holding it to your chest or above your head).
>>13672580
>Here is a 15 meter, 37 ton spider that doesn't move on its legs, but is instead held up from the ass by a single crane
>doesn't move on its legs
Isn't that the whole problem?
>>13671427
well the US does spend some money on its space program and that's not killing anybody
![Robosaurus2[1].jpg](https://i.imgur.com/3D3wkWL.jpg "Robosaurus2[1].jpg")
>>13672592
Legs are hard.
>>13672592
We're talking about the strength of known materials and how much weight things can lift or support. The legs of the spider aren't important; that whole thing could be a metal sphere. What is important is that it's being held up by that little crane, which miraculously hasn't snapped like a twig.
We've got the materials.
>>13672601
The whole basic problem is as far as mechs/powersuits go, we're essentially at Kitty Hawk Wright Flyer level, just figuring it out and mostly hobbyists. And people are suggesting we can do WWII level progress. It could be done possibly even with current materials, but the technology and knowhow to do it with any efficiency just hasn't been figured out yet.
>>13672291
>>13672330
The fist/forearm is detachable
>>13672607
>What is important is that it's being held up by that little crane, which miraculously hasn't snapped like a twig.
But you'll notice the majority of the weight and engines are all in the base. If you flipped the crane upside-down I doubt it would fare so well.
What if wait, go to Mars, and then build giant robots there?
The lower gravity would make it easier, right?
>>13672644
This crane's truck body is just twice the width of a regular truck, but it lifts 1,200 tons, and can extend its boom to 100 meters.
This is overkill, size-wise, for a mech leg. It should be evident by that extension length that you don't need something near this thick to hold up that weight without bending; it's only that big around because it's all telescopic.
>>13672607
A mecha with industrial cranes for legs would work, though be pretty damn slow and unimpressive.
I guess the difference is between building a 15m tall paper mache with hydraulics art project vs a 15m tall IRL Gundam that can run at a hundred miles an hour, shrug off APFSDS rounds, jump and fly.
>>13671838
Why not both?
>>13672334
Hey anon why don't you explain how the square cube law works and how it doesn't allow for mechs instead of just posting the wikipedia article.
>>13672599
Yet.
>>13672669
>he doesn't know about the satellite lasers
>>13672634
Electric motors whip the pants off gas and diesel for weight and we're really getting into those recently. The most powerful diesel engine is the size of a building, weighs 2,300 tons, and produces over 107,000 horsepower. One of the newish, more powerful electric engines does 49,000, but is only the size of an SUV and weighs just 75 tons. Having instant torque is great, too.
>>13672668
Because I've already explained twice how even though the Square-cube law will have an effect on construction, I've conceded that the power source is the real issue through a similar effect. To power the mech you'd need a large engine, attaching said engine then adds even more weight, so you'd need a yet larger engine, ad infinitum.
>>13672731
>Electric motors whip the pants off gas and diesel for weight and we're really getting into those recently.
They lose a lot of that power when miniaturized though, look at how underpowered electric cars are.
>>13672751
So many different factors there. The electric car is lighter, so they don't need an engine as powerful. They're also using electric engines that are simply smaller than gasoline engines, too. Compare the size of a 400hp gas engine, even one of those super-light ones out of Nissan, to something like the motor in a Tesla S. Way bigger.
Electric engines in model aircraft have better power to weight ratios than gas engines in the same, and superior to those in most cars, too. Miniaturization isn't the problem. Though with >>13672731 we're specifically talking about a superconducting engine, so we're going to need some coolant as well.
But hey, cryogenic beam attack.
>>13672746
>can't send a rocket into space, you'll need a massive engine to do so, and once you add that on you'll need an even larger rocket, ad infinitum.
>>13672467
https://en.wikipedia.org/wiki/Lockheed_CL-1201
We decided it was too anime to actually build.
>>13672334
Square-cube law will be moot once we start inhabiting other worlds.
>>13672794
>>13672796
You know what? You're absolutely right. The ONLY reason nobody has made an efficient mech is laziness and lack of interest, if only those robotics labs had YOU there to show them how it's done! What are you waiting for, get out there "Tiger", and get that Gundam made! I want to see it by next week!
>>13672794
I was trying to find some exact dimensions and weight for various engines by way of example, but Googlefu is failing me.
Instead, have the color swapped Shizuma drive that sits in Tesla cars.
>>13672820
Hey, we were all just talking about what's technically possible, not what's efficient, economic, or sensible.
>>13672820
Why are you actively doing your best to make this thread less fun?
>>13672805
>22 fighter aircraft externally
Couldn't get harder than I am right now.
>>13672820
>efficient
Like someone else said, we're not building war machines here. We have basically zero experience in the field as opposed to wheeled vehicles or aircraft which have +100 years of engineering. We're scoping out what is possible.
>>13672824
>what's technically possible,
>>13671387
>Something like Dai-Guard.
>>13672833
>>13672833
We both know the Top Gear team could build a mech if given the time and enough tools in a shed,
>>13672826
>Why are you actively doing your best to make this thread less fun?
Because I can enjoy a good debate from time to time. IDK about you, but I was having fun. Granted >>13672820 may not have been the best response, frustrating issues unrelated to the thread bled over into a salty post.
Though another point to make would be that before steps can actually be made to figuring out how a mech could feasibly be built, the inherent limitations must be understood. Apples to Oranges, such as >>13672796, simply won't do.
>>13672648
Actually, yeah, probably
>>13672854
I'd love to watch the attempt let alone the outcome.
>>13671387
They built Scopedog for over a million, so anything is possible.
>>13672291
>>could it tear off its own fist and throw it
>No.
Then why could the Ingram that scene was referencing?
>>13672599
You do realize a good part of any space program is figuring out how to get things that can kill people into orbit around them, yes?
>>13672827
>This is EWACS. enemy carrier detected
>code name,Oberon
>stay alert, it will begin deploying its escort fighters the moment you are detected
>Mobius one, you are free to engage
>read thread
>search "Landmate"
>0 results
step it up, fools
>>13672291
Would mechas be a better military alternative to star fighters if we decide to duke it out in space in the year fuckballs 2WXY???
>>13672334
I have hope in miniature practical corridors
>>13680202
no..... too much weight alone....
And again, as i'll always say, a Mecha is impossible. Always will be, there is no need for something like that. a Giant Humanoid man is going to have a lot more problems than what humans have right now. We have problems being upright and being like 5'10 feet. Imagine 15 meters tall.
you're all dilusional retards.
>>13680529
No one wants to hear about technology from a Hue-country that just got toasters this decade.
>>13680202
Star fighters are a bad idea and/or completely unnecessary to begin with. If we somehow contrive a future where a space war actually happens, it's not going to involve fighter craft or space jets.
>>13680529
but I thought everything was weightless in spaxe you retard
>>13672805
>nuclear fusion powered aircraft
Hey, I just recently found out that my grandpappy worked on that project!
Well, indirectly. He was a chemical engineer leading a team trying to devise new methods of extraction and refinement of rare earth metals for some obscure facet of reactor production.
He said that they figured out some cool new ways to get lots of yttrium (which was from his standpoint the interesting post of the story, because engineers are like that), but on the whole he was kind of relieved that they never got around to putting the thing up in the air.
