Mar 14th, 2017: Deep Learning
 

Anything you can do they can do better,
They can do anything better than you.
Not you, humans. They are computers used to design things, especially 3-D printed things.

http://cellar.org/2017/deep1.jpg

http://cellar.org/2017/deep2.jpg

http://cellar.org/2017/deep3.jpg

The computer calculates the stresses, knows the material's strength and calculates what is needed.
Fine, but what is the calculation using for data? Tables somebody gave it? Are the accurate?
If you tell it to design for maximum weight savings you get a design the is just strong enough for the parameters it's given.
If you tell it to program for low cost it depends on the data for a safe design.
I can see a lot of slaves in this woodpile. :eyebrow:

link

The stress optimized designs are certainly weird looking. I've not seen any in practical use, that bicycle part looks like it would be an 'interesting' test.

Of course in an engineering design required strength is calculated, then a safety factor applied, cost and weight are minimized to provide this level of strength.
Light weighting is a big deal in automotive design currently, reducing weight to help meet fuel efficiency standards.

Yes, when engineers do it, but what happens when the design engineers are replaced with contract hungry programmers, who win or fold?
When I look at that frame design the thing that comes to mind is how the fuck do you repair that?

You 3D print an exact duplicate part. Takes 5 minutes!

I find it intriguing how differently learning is handled by different "students". A group of scientists taught a group of captive-raised monkeys the concept of money by getting them to associate desired behavior with the reward of a small metal circle, which they could then put in a specifically designed vending machine for whatever food treat (visible through windows) they were in the mood for.

Not long after, they noticed something. Male monkeys were performing--and even over-performing--the desired behaviors. Upon getting their "coin", they'd either get a food treat or just hand the "coin" over to a female, who would then reward the male with sex. Yup, we taught monkeys about money and the FIRST thing they invented was sex for hire.

Now we teach a computer about stresses and physics and calculus and all that goes into this kind of research, and the stress-optimized designs it comes up with all look vaguely biological. That last photo, the piece that looks like it should clip together, reminds me a LOT of the structure of bird bones, which have just about the best stress-for-weight ratio found above the benthic zones of the oceans.

If the current political administration hadn't just gutted every bit of scientific funding (even NOAA lost a massive chunk of its budget...good luck directing your military without weather satellites!) I'd be a lot more excited about the immediate future of this kind of research.

I think that automobile frame would take a lot more than 5 minutes, even if repair shops had the capability. Of course it's a copy righted part so it would take awhile to do the paperwork and pay the royalties.

I wonder if they used that technology to design the Klymint ultra-lightweight backpacking sleep pad? Packs up smaller than a soda can.
Attachment 59754

Mind your contractor...

like to try that...

I found this graphic which seems to match my own experience.

Do the pressure points line up?
Attachment 59756

Looks to me like the shoulder area is under padded, assuming the head area is closest to us.

That is exactly my worry, the machine designs and builds according to the ethics/goals set by whomever controls the input.

Fear not Bruce. The resulting designs are thrashed to show weaknesses and failure so it can be fed back into the program and around and around refining the result.

If it is going into a consumer good like a car there is no way a sub-par result would be let out. They'd also take the result and run it thru their standard stress analysis programs.

If I have an accident they straighten and weld my frame, how do they repair that spaghetti in picture 2? It's something that's going to be buried in a unibody type construction so I doubt it can even be accessed.

My fear is this leads to more disposable goods that can't be repaired. Sure, make it out of more recyclable material for the good of the environment. But disposable shit isn't good for the consumer's wallet.

The tea kettle dies and is unrepairable, buy a new one. The TV dies and costs more than a new one to fix, buy a new one. The couch costs more to reupholster than a new one. Buy a new one. It keeps creeping up the scale.

Somebody said, just 3D print a replacement part... Can 3D printers print parts in high-carbon steel??

I'm sure they can, you'd just need something like a wire feed welder instead of an inkjet and viola! Or voila, if you're french.

I think Bruce posted a video of a guy who built a 3-d cement jet printer and went of to print a castle.

And Bruce, the reason for the spaghetti shaped frame is that you'd never really know if they repaired it or not. They could do anything, really, and most of us would say, "Looks legit."

@ Snake, I have a shit ton of washers, does that mean I can get busy with a special group captive lady monkey? I mean for science's sake.

They programmed future deception into the computer?:eyebrow:

I read they are printing with aluminum. The aluminum is melted in a furnace then flows into a nozzle where it's superheated by induction until there is enough pressure to blow out one drop. I'd be concerned how homogeneous the finished piece is. Have to assume someone is looking at that, because I didn't pay all those taxes to school those little fuckers for nothing.

They hope to be printing with steel soon, but I'll bet it's not high carbon or high strength steel.

They print titanium and don't forget as a publicity stunt they printed a complete 1911 45 out of steel and then demonstrated the result by putting ten thousand rounds thru it.

Damn, I haven't kept up with this shit.

What kind of conspiracy theorist are you? Give back your tinfoil hat until you adjust your attitude, young man.

;)

I'll stick with Viking crucible steel, carbon-boosted with the bones of my ancestors.

Viking Sword, "Ulfberht" or +VLFBERHT+

I have to say, this is one of the stupidest fucking things I have ever seen. Designed by someone who is divorced from the reality of camping, it's not only not right, it's not even wrong.

Who remains motionless during their sleep? When backpacking, how often do you find yourself sleeping on flat ground without sticks, roots, stones, peas, and god knows what poking up from the ground? Even a small root would easily protrude beyond the thickness of the mat though one of the openings.

Seriously, people need to get the fuck off their devices, stop playing with solidworks, sketchup, and autocad and go outside and actually touch the physical world.

But it works fine on top of my mattress. :haha:

And would it fit in a "child sized" soda cup? @ 48 sec
:D;)

Deep Learning is raising it's ugly head in a new way.
Heh heh, I'd teach that sucker something. :eyebrow:

"Isn't completely clear" is tech speak for Idunno.

Imagine one of those Boston Dynamics robots with this. They're taking the next big leap toward our Robot Overlords. :whofart: :facepalm:

link

So now imagine we've got one of those Boston Dynamics wolf-things patrolling the streets, keeping the criminals at bay... except they learned how to do their job from watching real cops.

And the robots end up racist.

And in the pool.

I sincerely doubt it.

Think about how little water that blow up lace displaces. If you're not movin the water away with what you're "floating" on, you're gonna be in the water. Water's heavy but not that heavy.

There are great big holes in inner tubes, and they float.

I feel ya, though.:)