*Thinnest and yet roughest. Not thick enough to be a barrier, and it can rub you raw to provide an entry point at the same time!

“Sealed” is also a vague suggestion with HVAC. Every ducting join, every piece of equipment, all of it leaks. I shudder to think how much heating/cooling is wasted that way.

I kind of disagree with you, in that when I think about the standalone meanings of the words in each phrase, I think they do say the same thing.

The meaning of the words “You are welcome [to the help I gave you]” implies, to me, that there wasn’t actually anything to offer thanks over. You’re acknowledging their thanks, but telling them that they are welcome to take/use whatever it is you’re talking about. [EDIT: normally when someone tells me I’m welcome to something, I feel less compelled to ask and thank in the future. “You’re welcome to anything in the fridge”, for example.]

It does not imply, to me, that I would appreciate them returning the favour. That might be implied meaning in the phrase, but it’s definitely not what those words mean by themselves.

In any case, “You’re welcome”, “no problem”, “no worries”, etc… are all idioms that mean something different than what their individual words mean. The phrases as a whole carry a different meaning than the words themselves suggest.

No, close the lid because that’s how you avoid coating everything in the room with a film of urine and feces. Open toilets are disgusting.

Yeah, this. I’m certain there do exist people in this world who have a chart like this. Probably they just happen to enough sense to not post the chart online, or are too obscure for theirs to become the meme.

That sounds like a problem from using too small of a drive. Every torque curve I’ve seen for brushless DC or AC servos is constant torque from 0 to about 75% rated RPM, and then starts to drop off.

Well, that’s why you use a proper servo drive. Yes, technically they oscillate at standstill, but it’s so little it literally does not matter. Closed loop servo control is a solved problem unless you’re trying to implement it yourself.

I don’t know why you’re getting down voted. You’re correct, steppers are used due to cost.

I disagree with all your points. What kind of servos are you talking about?

BLDC and AC servos maintain full torque at stop too, and have about 2-3× the torque of a stepper of similar size.

The only way a stepper can rival a servo for precision is with a high degree of microstepping, which is far from guaranteed positioning with open loop control.

I haven’t directly compared response time between steppers and servos, but I would be extremely surprised if there’s a significant enough difference to worry about. Most servo-controlled machines are larger and so are designed to accelerate slower than a printer, if that’s what you mean. This is intentional because inertia is a thing you have to worry about, not because the servo reacts to command changes slowly.

There are valid reasons steppers are used on printers, but it’s not because they have superior performance.

Cost is the short version, yes.

I don’t know what kind of servos everyone here is talking about that are less precise than open loop steppers. Low quality hobbyist stuff, I guess? Proper servo motors & drives are the standard for good reason for robotics, industrial CNC machines, and pretty much everything else that needs powerful motors with high precision. Much higher power density, higher RPM (good for increasing torque with a gearbox), equivalent or better precision, plus closed loop control is a huge capability and safety gain.

That said, good, industrial quality servo motors are 1) expensive and 2) aren’t made in small enough sizes to be comparable to the steppers on most 3D printers. Even the smallest industrial servo + drive I’ve seen is about 5x as big as the steppers on a personal 3D printer and costs $800ish. Obviously, both are deal breakers for a personal 3D printer.

3D printers are a fairly ideal application for steppers. The moving parts are small and light, meaning you both don’t need a large motor and the danger of slippage is lower. Plus, steppers are cheap.

NFTs do not solve the problem of proof of ownership. Nor can they. If someone steals it from you - whether by trickery, force, or any other means - it’s just as lost to you as any other stolen thing, digital or physical. (Not to touch on the fact that NFTs to date have just been URLs to web hosted media, i.e. ridiculously non-unique and insecure.)

Also, your whole paragraph about theoretical NFT replacement for DRM is just describing a different kind of DRM.

Agreed. Don’t make a threat - just make the GDPR complaint. Inform the company if you want. How many times have you remembered to follow up on one of those threats to see if you should still make a complaint?

It’s not infantilization. These bills are designed to prevent “one more hoop” design by the company to make it too annoying to unsubscribe. Your position assumes good faith behaviour by the company with the newsletter. That is absolutely not a given.

I don’t disagree that the people with money who are funding this kind of development don’t care about regulations or safety.

That said, the idea that they’ll do it out on the open sea or in space are absolutely laughable. Those ideas pitched so far completely ignore all the obvious engineering problems. Not to mention that going to international waters to avoid regulations means that the navy of that country you’re thumbing your nose at now has free reign on you.

In other words, AGI is what every layperson thinks of when people talk about AI. It’s (sort of) what you see in the movies.

LLMs, and every other AI technology we currently have, do not actually have any form of intelligence. They’re called AI because the sub-field of computer science that they arose from is called AI, and has been for decades.

Came here for this, thank you for your service.

Same. As it should be.

That analogy relies on the reader having any idea what wire EDM manufacturing is. ;) Not exactly an everyday topic.

Iron would be a terrible metal for coinage, since it would shed rust all over everything after being handled. Some coins might be cast from iron (if it’s cheaper than alternatives, idk) but plated in other metals to prevent that.

It’s more because of the temperature differential. The more difference between the temperature of two objects, the faster they change temperature. A radiator with 50 degree water is ~30 degrees warmer than the room (or 80+ degrees for a steam rad), while cold water is going to be 10-15 degrees cooler than the room. Any colder and you need to use not-water so it doesn’t freeze. Condensation or frost is also a big concern to avoid property damage.