AnyOldName3
@AnyOldName3@lemmy.world
- Comment on Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking 2 weeks ago:
One of the stills from one of the videos that the BBC showed identifying it as a Tomahawk showed it at a very un-cruise-missile way up, so it could just have malfunctioned during terminal guidance or been clipped but not destroyed by air defence, and then hit the wrong target. It could also just have been a governmenty-looking building close enough to an intended target that whoever was checking it didn’t notice it wasn’t the target. It’s a lot easier to get everything right when the whole mission is to hit one person with one missile when everyone’s got enough time to do their job perfectly and everything’s been rehearsed than when there are thousands of targets and people are doing things in a rush, especially if orders are coming from people who don’t care about international law.
- Comment on Gaysadilla 2 weeks ago:
Cultural appropriation is something like McDonald’s advertising a new Indian burger and it’s just a beefburger with some chillies in it, i.e. someone’s attempting to gain from a bastardised caracature of the culture that wouldn’t be something someone from that culture would participate in. Right wing pundits intentionally misrepresented it as things like eating a traditional dish from another culture to make it sound stupid so people would dismiss it, and then people who’d only heard the misrepresentation but wanted to do the right thing or at least appear to be doing the right thing started acting like it was immoral to participate in any culture you weren’t born into.
- Comment on Windows 11 is getting support for 1,000 Hz+ monitors soon as part of Insider builds — Microsoft has reportedly increased the refresh rate limit to 5,000 Hz 2 weeks ago:
If all the profiles are garbage, then:
- it would be bad UX to start using one of the garbage profiles and declare that the monitor’s now working.
- it would be better UX to notice all the profiles have nonsensical values, fall back to a basic one all monitors typically support, and display an error message.
- Comment on Windows 11 is getting support for 1,000 Hz+ monitors soon as part of Insider builds — Microsoft has reportedly increased the refresh rate limit to 5,000 Hz 2 weeks ago:
How do you propose you sanity check numbers beyond checking whether or not they’re within a sane range, i.e. a hardcoded limit? It’s not like you can trust a monitor that’s potentially feeding you bad values to limit the number of bad values it gives you.
- Comment on Windows 11 is getting support for 1,000 Hz+ monitors soon as part of Insider builds — Microsoft has reportedly increased the refresh rate limit to 5,000 Hz 2 weeks ago:
Either you’d be accessing the internet to query which monitor parameters are sensible each time a monitor connects, or you’d be periodically updating a list of sensible monitor parameters which is exactly what this update was.
- Comment on Windows 11 is getting support for 1,000 Hz+ monitors soon as part of Insider builds — Microsoft has reportedly increased the refresh rate limit to 5,000 Hz 2 weeks ago:
If there are potentially buggy or broken monitors that sometimes report the wrong value, then a bounds check that enforces sane values makes sense. If the range of sane values changes decades later, then you’ll have to update things, but you’ll likely need to update other things on that timescale anyway, e.g. to support newer display connectors that support the new limits.
- Comment on Steam :: About the New York Attorney General lawsuit against Valve 3 weeks ago:
I think it’s possible that loot boxes (and real-world equivalents like trading cards) don’t violate existing anti-child-gambling laws, but if so, that’s a flaw in those laws that needs to be fixed rather than an indication that they’re totally fine and should be allowed to exist in their current form. They cost money and give an unpredictable reward where different options have different perceived value, so they’re quite clearly gambling to anyone who defines it based on its characteristics rather than an individual territory’s specific legalese.
- Comment on How to properly get rid of holes between perimeters? 3 weeks ago:
It’s got an option called Precise Wall that’s supposed to improve dimensional accuracy that at least seems to work in my experience (although I’ve not compared it to the results from other slicers).
- Comment on How to properly get rid of holes between perimeters? 3 weeks ago:
The right flowrate for dimensional accuracy is likely not the right flowrate to end up with solid parts where internal lines are properly smushed together. The sides of a 3D printed object aren’t flat, so if you adjust the flow rate so that the bits that stick out the most are exactly where you asked the slicer to put the edges of the wall, you end up with your internal lines just barely touching each other instead of properly bonded. You want to tune your flow rate to get solid parts when you ask for them, set the line width a little wider than your nozzle to give space for material to flow outwards (which happens whether or not you want it to, but things work better if you tell the slicer it’s going to happen), and then when you’ve got a part that really needs the dimensional accuracy to be right, maybe temporarily use Orca Slicer instead to get its precise wall feature.
- Comment on Yay, milkshakes! 4 weeks ago:
They don’t take all of it, so if they’re doing what they’re supposed to, nearly all the crabs will be returned to the ocean within a few days and eventually be fine again. Some do die, though, and even if they don’t, they’re worse for wear after the process, and some companies have been accused of taking all the blood and then selling the dead crabs as fishing bait. There’s an artificial alternative available, but regulators aren’t all convinced it’s as effective, so it isn’t used universally yet.
- Comment on You probably can't trust your password manager if it's compromised 1 month ago:
Password managers are supposed to be designed to resist a situation where they’re compromised, and are only ever supposed to see a mysterious blob of encrypted data without ever having access to any information that would help decrypt it. The headline’s more like M1 Abrams Tanks Vulnerable to Small Arms Fire - it’d be totally expected that most things die when shot with bullets, but the point of a tank is that it doesn’t, so it’s a big deal if it does.
- Comment on Question: Humidity controlled cabinet 1 month ago:
The DHT11 has been replaced twice with similarly-priced but more accurate models, first the DHT22 and then the AHT20. In my experience, the AHT20 is a lot better than the DHT22, mainly because its power consumption is far lower, so it doesn’t mess up its readings by getting hot.
Also, at that size, I’d be very surprised if the dehumidifier has a compressor. It’s much more likely that it’s got a Peltier plate, and they’re not very good. They use a lot of power to develop and maintain a fairly small temperature difference, so if they’re in a confined space, they heat up the air quite a bit, and then the water from their tank will more easily evaporate.
If you’re willing to spend some money, a solid state ion membrane dehumidifier might be better for a small cabinet than a compressor-based one, as it’ll be easy to ensure the water goes out of the cabinet instead of into a container that can’t be emptied without opening the cabinet and letting more humidity in. They’re definitely not cheap, though. I think they’re still under patent as there’s only one manufacturer that I can find, so maybe they’re the dehumidifier of the future even if they’re not suitable right now.
- Comment on Give your Matrix account a Discord UI with Commet 1 month ago:
If it’s the problem that I’ve seen people complain about in the past, it’s effectively the same as HTTPS ‘not supporting’ end to end encryption because it runs over IP and IP packets contain the IP address of where they need to go, so someone can see that two IP addresses are communicating, which is unavoidable as otherwise there’s nothing to say where the data needs to go, so no way for it to get there. Someone did a blog post a couple of years ago claiming Matrix was unsecure as encrypted messages had their destination homeserver in plaintext, but that doesn’t carry any information that isn’t implied by the fact that the message is being sent to that homeserver’s IP.
- Comment on What to do with a roll of unprintable filament 1 month ago:
It was £7, so likely not worth the effort - if they want me to pay to ship it back, then that would cost about as much as the roll did - and it’s now outside the warranty period, so that would be pointless anyway.
- Comment on What to do with a roll of unprintable filament 1 month ago:
When it’s hot, it stinks of hot ABS, and it dissolves in acetone. I’ve read that sometimes budget filament manufacturers will use the same pigment across their whole material range, even if it’s not capable of withstanding the print temperatures of some of them, but it’s ABS+ rather than pure ABS, so it could be full of mystery additives that don’t handle heat well, too.
There’s not much point using it as glue as I’m not going to get through a whole kilo worth of ABS glue, and produce more than enough ABS scraps from test prints and support to always make a colour-matched glue anyway.
- Submitted 1 month ago to 3dprinting@lemmy.world | 9 comments
- Comment on 1 month ago:
It’s a federated Twitter alternative. It’s existed for a while - the initial release was in 2016, but obviously with all the Musk-related nonsense in the past few years, it’s grown a lot.
- Comment on YSK You can buy a @linux.com domain for email flex 1 month ago:
There are situations they don’t cover, e.g. if you choose a sender address from the same domain as the real address. Obviously, lots of email services check for that, but it’s not universal - it was a great tool for pranks at university for me.
- Comment on YSK You can buy a @linux.com domain for email flex 1 month ago:
The from field in an email is something that the sender sets, and they don’t have to set it to anything in particular. Unless your email client stops you (which is pretty common these days) you can just enter a made up address, another address that you’d rather receive replies through, or someone else’s address. It’s one of the reasons why phishing emails work - there’s nothing stopping a scammer impersonating anyone they want to.
- Comment on Man posts his incorrect opinion online 1 month ago:
I reckon it depends on how warm someone’s home is and how good their circulation is. If I don’t have shoes on indoors, then for half the year it feels like my feet have been stabbed because they get so cold (slippers are not enough), but I don’t wear the same shoes indoors as outdoors. I suspect that if we set the heating higher and the house wasn’t constructed in a way that makes the floor always much colder than a few inches above the floor, this wouldn’t be a problem.
- Comment on Game companies see share prices plummet following the launch of Google's very limited virtual world generator, Project Genie 1 month ago:
Investors managed to pour billions into making the metaverse bubble, even though that was just video games being invented a second time by people so uninterested in them that they hadn’t noticed they’d already been around for decades. There’s no reason to think that investors know what they are beyond something on a computer, so obviously they’d see something else on the computer as a viable competitor.
- Comment on Do people eat this? 2 months ago:
With energy prices in the UK being what they are, it’s only raw potatoes that are cheaper than bread. At least toast toasts quickly, so isn’t that energy-intensive compared with boiling a pan of water.
- Comment on Designed a simple photo frame on FreeCad. Why are some layers peeling in my print? 2 months ago:
Fillets are easier to print horizontally than chamfers as they spread the acceleration (i.e. the thing that makes sharp corners bad) over the while fillet instead of just splitting it into two stages like a chamfer would.
Chamfers are easier to print vertically than fillets as the overhang is limited and consistent.
There’s no overhang for a horizontal corner as you’re printing the same shape onto the layer below, and no acceleration for a vertical corner as it’s entirely separate layers so the toolhead never has to follow the path of the corner.
It sounds like you’ve read (or only remembered) half a rule. It’s not the case that either half of the rule is used the majority of the time because 3D printers are used to print 3D objects, so they always produce objects with both horizontal and vertical edges.
- Comment on That's a whole lotta hydrogen! 2 months ago:
But this guy says it, and he’s defined himself to be the sole authority, so that matters more than any number of biologists.
Every argument they come up with has been refuted in past threads, and they just dismiss anything they disagree with as irrelevant, but treating tenuous sources like a supposed screenshot of Imane Khalif’s SRY test originating from an obscure site that’s never been republished by a mainstream one, even if they’d been calling for her to be barred from future tournaments based on no evidence so would love to vindicate their stance with test results.
It’s not worth your time to engage with them in good faith.
- Comment on That's a whole lotta hydrogen! 2 months ago:
This is far from the second time. They show up a lot.
- Comment on Helldivers 2 gets new stealth missions today, and its super-slimmed install size version is finally ready to take over 2 months ago:
It’s not exactly a rootkit - if you just don’t agree to the UAC prompt while it’s installing, it’ll refuse to install rather than doing the thing that makes it definitionally a rootkit and managing to gain admin access without the user’s permission - but the game does still require kernel-level anti-cheat.
- Comment on Cyberpunk 2077 VR mod flatlines, after CD Projekt file DMCA strike and request its creator drop their paywall 2 months ago:
Generally when you see people advocate for not having to pay for things like that, it’s because they want to do away with currency and the concept that a living is something that needs to be earned rather than something everyone gets as a basic right. Plenty of people make art, including games, without a profit motive, so it’s not unreasonable to think that enough games would be made if everyone had way more free time and games were all made for free.
- Comment on Fear that quantum computing is on the cusp of cracking cryptocurrency's encryption spurs a global investment firm to remove Bitcoin from recommendations 2 months ago:
In theory, quantum computing should be faster once hardware that’s faster is available, and only if the problem you’re trying to solve is in BQP, which isn’t that much of what computers are used for. Progress has been slow, but continuous, so the gap between simulating a quantum computer and actually using one has been shrinking. In October last year, Google’s Willow chip was verified to have achieved quantum advantage, i.e. done something that could be checked externally faster than a classical computer could have. It was only 13,000x faster, and in one specific task, which isn’t really enough to change the world, but ten or twenty years ago it was still thought to be fairly plausible that the physics might not be right and even if the practical problems were solved, they still wouldn’t work.
Even if quantum computers get ludicrously fast, they’re still not going to be especially common, and they’ll be a piece of specialised equipment, more like an electron microscope than a home PC. Most people just don’t need to do any stuff that’s in BQP, so don’t care if they can do it faster. If you’re a company, university or government body that needs to do one of the very specific things that will be faster, though, they’ll be indispensable.
- Comment on Priming and sealing a painted print 2 months ago:
I’ve never actually needed primer to paint PLA unless the paint I was using was terrible, and wouldn’t have stuck to the primer very well, either. Tamiya’s acrylics have been entirely issue-free for me, both with a brush, or thinned and airbrushed, and they’re not that expensive, but I’ve also had acceptable results with random fifteen-year-old tubes of really cheap acrylics that were sold more as a children’s toy than a serious paint (although a lot of these tubes had gone bad in that time) and with Humbrol and Revel acrylics and enamels (although their acrylics come in pots that don’t seal very well, so it’s not that uncommon for them to be already cured when you first open them - if you’re buying liquid acrylics for model painting, Tamiya is a better choice).
- Comment on Should speakers hum when they're connected to a stereo, but the volume of is turned all the way down? 2 months ago:
If the ferrite is filtering a hum you can hear, it’s also filtering parts of your music that you can hear because a ferrite just dampens a frequency range and can’t tell what is and isn’t supposed to be there.