10 microns = .01 mm = .0004 inch
If your’re such a fucken genius why don’t you just make the cars out of lego and beer cans then? Ever think of that ya fucken knob?
british curses are always fun. cursing in my native language feels like crimes against humanity compared to this.
care to share something?
The worst swear word in my second language is pōkokohua. It means boiled head. Your head is sacred, so turning it into poop is the worst thing you could do to someone. Basically take all their mana (authority, public standing, it’s hard to explain fully in English) and turn it into shit.
Where I’m from we’ve got “glatnakke” which means “slippery neck”. It basically just means dickhead.
shithead might be the USian version
i don’t want to because they’re all really demeaning to women.
I literally had this conversation yesterday, somewhere else over the federation (same language).
I’m rewatching an old movie series from my country and one of the characters has some fantastic curses.
Dog-headed, unimaginative, impotent porridge farmer. Fleabitten amateurs, perverted shitspreaders.
My favorite I’ve learned of his is probably “no-good klamphugger” (doesn’t have a translation, but its a slur for a poor worksman. Like it just means poor worksman, but it’s a slur).Let me guess, Olsen-banden? :denmark-cool:
It really does take a genius and visionary to sit back and say “Hey, guys, let’s make this, but with as small an error as I can imagine. Don’t like, assess how precise stuff needs to be or consider any of that. Just make it all like really, unreasonably well, okay?”
I’m sure the engineers are blown away by that big mind, what a privilege. It reads like an excuse to blame the engineers when the truck inevitably sucks because they didn’t follow his perfect design.
Yeah I hate those fake appeals to “genius”. To the extent that someone like Musk provides “guidance” at all, it is to merely hop on his email and say some Captain Obvious shit to thousands of people who are too busy doing real work to read that shit.
Bourgeois apologists always deny the theft of surplus values from the workers and insist that profit is merely the boss’s “wages” for his “unique labor” of “training, guidance, and planning”.
But most of the actual training, guidance, and planning is not done by the actual owners, but by managers, who are employees that are paid a high salary, but are not usually board members or share holders or other bourgeoisie who live primarily off of surplus value.
He’s known for flipping the fuck out on anyone at anytime for any reason. I worked with a number of people who came from Tesla and they had endless horror stories about him. Basically you just pray never to run into him and if you do, try your best not to get noticed or you might end up losing your job that day just because he likes to instill fear and make himself feel big by firing people for any or no real reason.
Is he the Real Ultimate Power Ninja guy IRL?
Make the tolerances too tight and the body parts will interact with each other in unfortunate ways - shell gets too hot, metal expands, and you can’t open or close the doors. Window glass will crack etc.
Watch these fucking life-size HotWheels fly apart when it gets too cold or too hot.
It’s funny how Tesla’s already have a reputation for being designed with only California weather in mind, and now he plans on making them even more susceptible to such foreign concepts as “cold” and “heat”.
PLEASE BE REAL
Given that teslas have notoriously bad tolerances, like gaps on the order of millimeters, ya might want to fix the cause of that first lol.
This is how “entrepreneurs” “innovate”. They just say they want something and everybody else tries to work around the roadblocks the CEO probably put in place that make achieving the goal way harder than necessary.
not an engineer or whatever profession does this for a living
but i feel like something that requires very tight tolerances in order to function is bad design, in general at least
Machinist would probably be the people that make the actual parts. They’re guided by technical drawings, that specify the range of precision or whatever, as well as just how the thing is supposed to be. I think technical engineers make the drawings? I had to make them for machine-class, it fucking sucked. You need to be so incredibly clear with your lines.
A lot of things need a high amount of precision - semiconductors for example. That also just makes them incredibly difficult to make, which increases costs across the board. It’s also just a pain in the ass for a machinist - Why does the cupholder need to be precise to within the 1000th of an inch? No reason.
This whole thing is incredibly dumb.yeah good insight
better way to put it might be “unnecessary precision is unnecessary expense” lol
Depends on what it is. Some things like ball bearings need to be precise in order to work efficiently, but car body panels definitely do not need to be that precise. Pretty much nothing on a car needs to be within 10 microns.
You also have fun effects due to temperature, humidity, vibrations, heat radiation, etc. This means that large sheets produced in those precisions will still bend and all that, making the smoothness a bit absurd.
That said I could imagine that he mistranslated something his usability haptic researchers did tell him, that hands can detect irregularities up to 9 microns. Those numbers are relevant for how smooth surfaces have to be that people regularly touch. Still even in that most generous case it is a bit absurd, especially when we see Tesla’s shoddy current construction.
I like how he explains what a micron is as if the people who actually build things at Tesla don’t know
and honestly a little jankiness will just contribute to the PS1 aesthetic, he should want to lean into it for meme marketing purposes
I’ve had the displeasure of working with someone who is the capitalist behind a venture. He couldn’t give 2 fucks about what it was the auditor wanted or what was legal. I don’t intend to prove it rigorously, but I’m so sure that a capitalist would only care about shit like this when they’re stressed out about it. If it’s to the point that he actually has to learn the range of +/- 10mics it’s a fuckin meltdown
Maybe he got tired of all the memes about the subpar quality of Tesla’s.
The solution is obviously to tell your workers to make better cars. :My-goodness-Hank-scorpio: why didn’t they think of this earlierI wonder if he’s inventing arbitrarily rigorous standards as an excuse to delay production again
I can’t wait for Teslas workers handling multiple, frequently calibrated high-precision micrometers from different high-end manufacturers and taking multiple measurements and averaging them to get a result.
Because that’s how LEGO does it.
Lego also has to only check the tolerances of molds and replace them when needed, with car you’ll have to check them in thousands of different places and steps of the manufacturing and assembly with compounding errors
Also, LEGO is NOT low cost product by any means. Trying to build a car with lego processes would result very quicly in the wordls most expensive car.
Not most expensive, but close.
I used to work for a company that made stamping dies for aluminum cans, and some of those dies had tolerances close to .0004", because the aluminum is very thin and could crack and tear if the dies were not made precisely. The cans themselves are not that precise, they just need to hold beer without exploding. I can’t speak to Legos, but cars absolutely do not need this kind of precision, not even in the bearings. And especially not in the sheet metal body panels.
I can’t speak to Legos
Legos famously have a weirdly high tolerance for injected molded plastic*, it’s part of the branding they use to justify their high price. It does make them snap together more reliably than Mega Blocks or whatever, but Mega Blocks or whatever usually snap together anyway, so I don’t know whether that extra precision counts as necessary.
* People quote all sorts of tolerances for this, but the most credible-looking one I found was 0.04 mm.
I don’t even think SpaceX has those tolerances
Tolerances depend on the function of the part and are selected to balance various tradeoffs in production costs and assembly. A well engineered design does not require tight tolerances for the vast majority of features (reducing scrap, tooling, and labor costs), but some specific mechanism components like gears and driveshafts demand very tight tolerances for profile and runout in order to function reliably.
Tolerances will often influence which type of machine tool is used to produce a feature. A tight tolerances on an outside diameter might make the difference between a part being made on a lathe in one/two operations, or requiring additional operations on a cyllendrical grinder. Overzealous requirements for surface finish will require slower feedrates, sharper tools (which wear more quickly) and extend cycle times significantly, or require extensive manual hand-finishing.
Commercial bearings routinely have tolerances of 0.0004" or less & performance bearings designed for specific aerospace use/applications can have substantially tighter tolerances.
Legos company profile page 20 specifies that they must have tolerances within 10 micrometers
I assume. It was quoted on Wikipedia, but I can’t be assed to look thru it myself. The pdf is linked if you want to
I’ve used waterjet, CNC, and EDM parts. The waterjets typically give me ~100 micron accuracy, CNC ~20 micron and EDM ~10 micron.
“All parts of the vehicle”
At my old shop they gave the job of running the EDM to the old dude who regularly fell asleep during his shift.
What I’m saying is that those machines are slow as hell.
Yeah just cut out the body in waterjet, how hard can it be?
Doesn’t temperature affect precision within that range? Like when the parts cool down, they’ll be unprecise.
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For this to work I’d assume he’d need to invest in gear that can test precision within that range, so nothing will happen
Listen everyone: just make the parts perfect. All of them. You know how it hasn’t been perfect so far? Yeah that sucks, do it perfectly instead.
:Hank-scorpio-why-didnt-i-think-of-that:
Teslas, famous for their tight tolerances.
Elon heard that there’s tolerance in manufacturing and his apartheid brain went “not on my watch!”
For a super smart inspirational genius, he sure is doing the usual terrible corporate boss routine.
”Here’s a bullshit goal I want you to meet all of a sudden. How are you going to do it? That’s your problem, not mine.”
