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Case in point: 8% battery left, going down to 7% typing this comment.

>With the storage cost crisis

On that note, mandating an SD card slot as a requirement would be a very much welcome next step.

Manufacturers selling space-crippled devices just to upsell "premium" models is such an environmental waste (at the very least).


> On that note, mandating an SD card slot as a requirement would be a very much welcome next step.

Fuck that. Who are you to subjugate us with your preferences. Limiting what a phone can possibly be by mandating features such as SD cards is so unimaginative. There's always a segment of HN that truly wants to be tyrants and impose their preferences on the entire marketplace and consumers.

Nothing is stopping something like Framework laptops from existing in the marketplace right now besides demand. Y'all can all celebrate it on HN in your bubble but to mandate that the entire market goes in this direction reveals your frustrations more than anything.

You hate that people don't share your preferences and would go so far as to use the legal system to distort the marketplace just to satisfy your own preferences. It doesn't matter if it puts constraints on what a product can be, so long as it fulfills your needs.

So basically, it's a simpler path to impose your preferences on others than it is to actually do any work to build something or find something that matches your preferences.

Completely selfish. Just admit you have disdain for everybody else and you think you know better than the marketplace about what people want, and therefore should have the authority to dictate how everything should be designed and built while doing none of the work.

A healthy reaction to this frustration is to go build the thing you want, show people that it's better, and compete against the status quo - giving everybody more options and choices. You're not there though, and neither are the societies in the EU.

It's sad to see this kind of mindset take over Europe and it's clear it holds back Europe of reaching the heights of innovation and creativity that the world is hoping to see come from a continent that once pushed humanity to higher levels of existence and consciousness.


I can't tell if this is sarcasm or truly a straight-faced attempt to teach us about "healthy reactions" to things

'im not owned! im not owned!!', i continue to insist as i slowly shrink and transform into a corn cob

I like their attempt to teach us about "selfishness" even more.

Product regulations are "selfish", mmmkay. Requiring seat belts in cars is starting up tyranny¹.

Ditto for rear-view cameras. How dare they! Those authoritarian Europeans²!

_____

¹ According to this guy — and we know it's a guy, don't we?

² Rear view cameras are required on all new vehicles sold in the US.


Mmmmmkay.

Now go ahead an explain how having a microSD¹ slot may hurt someone who has a device that reads/writes data².

Not hurt shareholder value. I'm talking about people³ here.

I'll wait. Very curious to hear your perspective here.

_____

¹ Technology that has existed for 2+ decades at this point, is the defacto standard for removable storage in phones, laptops, cameras, audio recorders, etc, supported by devices that sell for $5 new and relied on by the highest end pro gear, current spec making it forwards and backwards compatible for the foreseeable future.

Something that takes virtually no physical space and costs virtually nothing to add to a device that already needs to operate on gigabytes of data (we're not talking about forcing that, say, on a thermostat).

² Particularly, one which can run into a "Storage full" error.

³ Physical human beings (including, but not limited to, the end users), and specifically not your (or some CEO's) feelings about it.


>(In exchange for some other difficult problems).

Ahhaha.

(I used to work in nTop, and boy is this an understatement when it comes to field based solid modeling)


I was working on an SDF-based CAD tool but gave up when I couldn't find a good way to do fillets.

It's very deceptive because the easy way works so well (Use smoothmin instead of min and you get smooth blends for free! You can even use a circular approximation of smoothmin and get proper fillets!). But when you want the user to be able to pick a couple of surfaces and fillet between them, it gets really hard.

This is the best I got: https://www.youtube.com/watch?v=LOvqdlDbkBs

It worked by rewriting the expression tree so that the blend arguments become sibling nodes and then applying the blend to the union/intersection that is their parent.

That works every time if you only want 1 single targeted blend, but if you want several of them then you can run into unsatisfiable cases where the same object needs to blended with several others and can't be siblings of all of them.

So I gave up :(. For me, CAD without fillets and chamfers is no CAD at all.

(Also, apropos for this thread: the discontinuity in the chamfer was a floating point precision problem...)


Nice use of the inigo sdf shader. Too bad this is so hard, I was hoping it would help solve the problem.

Well, user picking a couple of surfaces is literally an operation on a boundary representation, so of course it's a PITA with fields :)

I think the future is CAD is combined fields and breps. They're literally dual, one is covariant, the other contravariant (breps facilitate pushforwards, fields facilitate pullbacks).

One without the other is necessarily going to be limited in some way.


Picking surfaces is easy.

The distance field tells you the distance to the nearest surface at any point. You can have a "surface id field" tell you the id of the nearest surface to any point, and then when you raymarch to find the intersection of a line with a surface, you can read out the ID from the ID field after finding the intersection point. (Of course the ID field is also implemented as a function mapping points to surfaces).

So when the mouse is hovered or clicked in the 3d view you can easily find the ID of the surface under the pointer, and you can draw that surface in a different colour to show it is selected. No boundary representation needed.

The hard part is, given 2 surface ids, how do you add a fillet between them in the general case?

Another idea I had was to set the fillet radius on every min/max node based on the derived surface id's from the child nodes, but I couldn't find a good way to do this without making the field discontinuous.

I have more notes in this blog post: https://incoherency.co.uk/blog/stories/frep-cad-building-blo...

If you have good ideas for this I'd love to hear them and resume working on Isoform.


>You must never have lived through governmental collapse.

I have (1990s Ukraine emerging from the ruins of the USSR).

>The children and the women will be selling ass for basic necessities, raped by both neighbors and invaders, and killed for no reason at all. Not Or. And.

Yeah, on that... Nope.

Dunno where you fantasized that from.

Prostitution for basic necessities existed, as it does in the US today (and everywhere else: poverty is the #1 reason for it).

Gangs did form. They didn't quite "seize everything they can". Protection racket was common, and preferred for the same reason that taxing a market economy is usually more profitable than a planned one.

"Invaders" weren't a thing.

Mass rapes weren't a thing.

People who "bulked up" and joined gangs, in their masses, weren't the winners.

Berezovsky, one of the most infamous Russian oligarchs, came from an academic background, with multiple publications in applied mathematics.

(Berezovsky number is a fun alternative to the Erdos number; mine is four [1])

Khodorkovsky was a chemical engineer by education who bootstrapped his business career by importing and selling computing equipment for a science education center he opened during perestroika. He used the funds to open a bank.

Gusinsky, Russia's media magnate, dropped out of engineering studies to major in theater. His diploma work was on Moliere's "Tartuffe".

Another theater major, Vladislav Surkov, went on to become Putin's chief propagandist and is primarily responsible for shaping the post-truth world we live in today.

Turning to Ukraine:

Kolomoyskiy, one of the most infamous Ukrainian oligarchs, was a metallurgical engineer.

Pinchuk, another oligarch, got a doctorate from the same university.

Poroshenko, an oligarch and a former president, got a degree in international relations and started a legal advisory firm for international trade before the USSR collapsed. His school buddy Saakashvili became the president of Georgia.

I can go on and on. A few thugs did make it big (e.g. Akhmetov); they were exception rather than the norm.

As the USSR collapsed, the people with enough smarts to be able to "seize everything" were either politicians or nerds.

Your strongman fantasy has no basis in reality.

"Nature" valued people with PhDs, it turns out.

[1] https://mathscinet.ams.org/mathscinet/freetools/collab-dist?...


Nature values intelligence and strength. Some, like OP may have the latter but lacks the former. I call that a tool.

Also: "I see you are trying to print a hollow cylinder. Sorry, you can't print gun barrels"

Also: "The Letter_C.stl can't be printed because it is an 88% percent match for a gun trigger"


>Anyone with any engineering knowledge can see why the 3D printing analogy doesn’t work because there isn’t a fixed set of models being banned.

Also because you can manufacture the exact thing with a lump that you just saw off later (or with a hole you fill with epoxy), or slightly larger / smaller / bent / etc., and it'll be functionally the same.

A functional piece of counterfeit currency needs to be identical to legal currency by the definition of currency; being indistinguishable from the real thing is the only function (otherwise, what you have is a piece of paper).

That doesn't apply to anything whose function isn't "looking exactly like this specific thing".

If the legislation aimed to by museum-grade visual replicas of certain shapes (e.g. an exact scaled down copy of Michelangelo's David), it'd be a technically challenging, but feasible problem.

But the problem they're trying to solve amounts to detecting the manufacturing of pieces with a certain function algorithmically, and forcing that spyware into every machine.

To boot, any form of algorithmic inference of the sort will require much more computing power than a 3D printer ever had.

That's ignoring the feasibility of solving the problem of "can this be a part of a gun", or even the much simpler one "is this part functionally the same as this other part" without giving a false positive on everything (as the saying goes, anything thing is a dildo if you are brave enough; guns aren't much different).

What I'm saying is that zero engineering knowledge is required to understand that requiring machines to refuse to make exact visual replicas of objects isn't the same as trying to restrict function.

I.e. that checking if two flat designs look the same is not hard, but checking if two designs will function somewhat similarly if manufactured is a God-tier problem.

_____

TL;DR: the only thing you can check by looking is looks.

And while that's all that matters for currency, it's irrelevant for guns.

Hope someone explains it to them legal folls. Ain't no engineering knowledge required for it.


"It takes zero knowledge to" is sadly a statement that works only given common sense,

which too many people are sorely lacking


>I never understood banning nunchucks. They kind of ban themselves.

I mean, that's a solid reason to ban them :-)

In countries where healthcare is socialized at least. As a cost-saving measure.

They're melee equivalents of footguns.

>If you've ever been a kid copying TMNT Michelangelo with home made nunchucks you've almost certainly smacked yourself in the face.

I've seen qualified users train with metal nunchucks as a kid in the early 90s.

Even then I thought, if I had those, I'd knock my own brains out so fast ಠ , _ ಠ

>Y'know what's martially better than two sticks with a string between them? A single big stick.

Also an order of magnitude safer for the user.


>You can easily go through a couple hundred rounds in one visit to the range.

Range shooting is not what they're trying to legislate though.

Whoever killed that healthcare CEO didn't need a hundred rounds.

This legislation is insanely, horrendously bad and harmful, but "3D printed gun components are useless" isn't a solid argument against it. They're useful enough.

The real arguments, as others said, are:

1. You can achieve much more already without 3D printers

2. The legislation won't achieve its stated objective as any "blueprint detector" DRM will be trivial to circumvent on many levels (hardware, firmware, software)

3. Any semblance of that DRM being required will kill 3D printing as we know it (the text of the law is so broad that merely having a computer without the antigun spyware would be illegal if it means it can drive a 3D printer)


> Range shooting is not what they're trying to legislate though.

It's the thing gun manufacturers are selling to their customer base though. The theory was they were lobbying for this to prevent competition, but it's not good enough to actually compete with them.

> Whoever killed that healthcare CEO didn't need a hundred rounds.

Luigi Mangione didn't have a criminal record. Given his apparent political alignment, he presumably used 3D printed parts for trolling purposes since there was no actual need for him to do so. He could have bought any firearm from any of the places they're ordinarily sold.


>It's the thing gun manufacturers are selling to their customer base though. The theory was they were lobbying for this to prevent competition

Does anyone actually believe this? Is there any funds for this theory?

Seems to be too far fetched to be even worth sitting.

>Luigi Mangione didn't have a criminal record

That really isn't the point (he still doesn't have a criminal record, by the way).

The point was that the stated danger of 3D printed guns is their use by criminals for criminal purposes, not economic competition to established gun manufacturers.


> The point was that the stated danger of 3D printed guns is their use by criminals for criminal purposes, not economic competition to established gun manufacturers.

I guess the counterpoint is that it's not actually useful to criminals either, so there is no incentive for any non-fool to want laws like this and then all incentive arguments are weak because foolishness can be attributed to anyone.


Luigi Mangione wasn't trying to get caught. Maybe he was worried buying and using a real gun would link him back to the murder.

Let's review the three possibilities here.

One, you succeed in never being identified or apprehended. Consequently you, rather than the police, have the gun you used, and you can file off the serial number and throw it into the sea or whatever. They don't know who you are so they never come looking for the gun you no longer have and it's just one of millions that were sold to random people that year.

Two, you get caught before you do the murder. Some cop thinks you look too nervous or you get into a car accident on the way there etc. and they find the gun. Having one without a serial number at this point means you're in trouble when you otherwise wouldn't be. It's a disadvantage.

Three, they catch you in the act or figure out who you are because your face got caught on camera somewhere after you took off your mask etc. At this point it's extremely likely you're going to jail. This is even more likely if the weapon is still in your possession because then they can do forensics on it, and it not having a serial number at that point is once again even worse for you. This is apparently the one that actually happened.

Whereas the theory for it allowing you to get caught would have to be something like, they don't know who you are but they have a list of people who bought a gun (which, depending on the state, they might not even have) so they can look on it to find you. But that's like half the US population and doesn't really narrow it down at all.

There is no criminal benefit in doing it so that leaves the remaining options which are either trolling or stupidity.


It comes back the same thing, there is zero evidence that gun manufacturers are lobbying for this while Everytown is very publicly and proudly announcing that they are pushing this exact legislation.

It's ridiculous that this is even being discussed. The people proposing the bill must have zero understanding of how a 3D printer works.

It makes as much sense as requiring saw manufacturers to implement protections that restrict what can be cut out with a saw.

Or pen manufacturers being required to enforce copyright.

Any form of this bill will 100% fail to attain its stated objective, while having horrendous not-quite-unintended consequences.

And in the end, what's to stop someone from assembling an unlicensed 3D printer to make unlicensed prints? That's how the industry literally began.

(Not to mention: what do they think would happen to the hundreds of millions of existing "dumb" 3D printers? They won't disappear because there's a law).

Sigh.


> Any form of this bill will 100% fail to attain its stated objective, while having horrendous not-quite-unintended consequences.

California gun laws in a nutshell.


California laws in a nutshell.

> what do they think would happen to the hundreds of millions of existing "dumb" 3D printers?

Hey, my printer might be going up in value.


Too bad you wouldn't be allowed to sell it without catching a misdemeanor or a $25,000 fine.

>And in the end, what's to stop someone from assembling an unlicensed 3D printer to make unlicensed prints?

You really don't have to go that far. A very high quality control board (eg. an original Prusa) is like 90$ and cheap ones go for 25$.

You could buy the licensed printer and swap the board. Or maybe even just flash the firmware on the licensed printer


>Or maybe even just flash the firmware on the licensed printer

Yeah, that would also be a crime under this proposal.

Which is one of the big reasons it's problematic.


The argument was they feel they are invincible in their [monopolist] position, and that argument is only made stronger by the cases you cited as none of the outcomes really moved the needle in that aspect.

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