j4k3

joined 2 years ago
MODERATOR OF
[–] j4k3 3 points 4 days ago* (last edited 3 days ago)

Absolutely not. No present computer can be built from scratch. The bootloader and microcode are proprietary. People slapping parts into a case are not building anything. No one can read the datasheets and build a machine like Woz, for some unethical asshat like Jobs to steal. The hardware is undocumented at this level and is now propriety because of a culture of moral decay. When x86 got established, it was only because it was open source with full documentation, and not only that, it was required to be second and third sourced to ensure no one could manipulate customers even with just the sourcing. That culture of never trusting companies and accountability is dead.

Trust, required for proprietary products, is feudalism. Ultimately that loss of ownership rights is a coup against democracy itself when normalized in culture. This is a dystopian world I recognize for its broad implications for a terrible dystopian future and wholly reject. I can only affect change in myself, and tell others. It is a complicated balance.

I will not hesitate to speak up with my personal opinion. However, my personal opinion is not a moderator here. I really should edit the community details to make my position clear. I have a policy of very conservative moderation. I have communicated to other mods and mentioned openly that my policy towards moderation is to never take actions when I am involved in a conversation. I will defer to other mods if ever necessary.

My personal opinions hold no sway over moderation here. Guerilla marketing is prohibited, but determining so in practice follows a set of undisclosed rules that will remain undisclosed to avoid gaming them.

I am only human. I can be easy to dislike by many, so I am told anecdotally. I'm very abstract in my thinking and reasoning. One of the positives to such an abstracted personality is that I am, I believe, more capable than average of disconnecting my internal sense of morality and beliefs from my actions in judgment of others. I value the idealized judge I wish I had, altruistically, in the actions I take for or against others far more than enforcing any internal emotional perspective I retain. In other words, I care about the community members more than my principals that are intended to better said community. I will never attempt to hurt the community to shape it to my will or dilutions of an ideologue incapable of adjusting to reality, even dystopia.

As a person, I'll never shut up or stop pointing out that proprietary is the refuge of criminal thieves and cowards. That it is selling yourself and ultimately citizenship and democracy in the biggest picture. However, as a moderator I welcome all to share their experiences in 3d printing, completely unhindered and openly. I will not stop them from sharing in any way, but I will not silence those that object for moral reasons either, so long as both sides remain respectful and positive overall. Hopefully that clearly defines my stance and puts any doubts to rest.

There is no reason to worry about the ambiguity of that moderator tag here. I engaged, therefore in this place, by my own rules, I am not a mod in this instance or any other similar instance. I will always tell users directly if I question or engage as a moderator, and this is only applicable in instances where I am not already involved. As a mod, I am only here as the janitor to herd bots and sort out issues like bigotry. The community is just as much yours as it is mine as a mod and as a user. As a fellow human, I do not matter here any more than you.

[–] j4k3 1 points 4 days ago (1 children)

I tried to relate the limited niche where having closer together gearing makes a noticeable difference. Unless you are operating in a very small margin, you will never notice having close together gearing. I only ever noticed the difference with racing where I'm on the edge of blowing up throughout the entire race and happen to feel like I'm on a knife's edge and spinning a little too fast or slow to hang on for more than a few minutes, and comparing times on a given route and pulling a few minutes out of an hours long route. In all other instances, having more range has been better for me. So I prefer to have as wide as my drivetrain supports. If I have any choice, I prefer a tighter set of low gears and a bailout final cassette cog.

Sorry if the abstraction is hard to ground in your understanding. Broadly speaking, this is how I setup any bike. I wouldn't worry about the total, and would start with the widest cassette that will work with your current setup. Then I would only change the front chainring if you still feel a lack of top speed. In my experience, only the standard combinations and matched group sets shift really well at a racing or top performance level. The more unconventional setups can be made to work reliably but shift speed and shifting under load become lower quality in ways that are not worth the compromise. There are subtle elements like how the front derailleur cable is routed that are designed for a specific combination. While it may seem trivial, in practice I have seen issues from moving a derailleur up or down significantly beyond normalcy, or changing a chain line, or even tooth profiles between models of chainrings.

Back in the days before indexed shifting, people often played a lot more with gearing, but the issues are different with friction shifting, as are the shifting performance and expectations. This is why people do not generally alter gearing in the same way any more.

[–] j4k3 5 points 4 days ago (2 children)

The entire hobby should have started in the 1980's. It did not because of proprietary anti competitive cowards. RepRap and Adrian Bowyer created the entire 3d printing hobby and community. The whole thing only exists because of these. The exploitation of this community is the only issue I care about. I will call out thieves every time. You may love stollen goods. I can't change your ethics. I will not call them reasonable or morally right.

[–] j4k3 3 points 4 days ago (5 children)

In know the history of 3d printing and why I got involved. Bambu changed everything for the worst and forced everyone to lower expectations and business practices. They have been the most toxic community influence to date. Proprietary theft is criminal.

[–] j4k3 1 points 4 days ago (1 children)

It is a response in the exact same tone I read, and this is exactly how In felt as well. I'm glad that point was clearly made. I did not start that.

[–] j4k3 8 points 4 days ago* (last edited 4 days ago) (1 children)

that is quite the staff you have under that dress Mozelle

[–] j4k3 12 points 4 days ago (13 children)

It is just a wire and connector. That isn't Prusa. If it was a bambu you would be buying a new printer without an upgrade path, and since a new printer came out, your old suddenly stops working right like some Apple product. Believe it or not, bambu printers have connectors, likely from the same global supplier too.

The quick fix is to remove the connector from both sides, yes the female too. Then solder the connection directly. You can add some hot glue for strain relief. You'll still likely have the other side of the connector. If not, who cares, "it just works."

I know it is a pain, and irritating, Prusa wiring is probably the weakest link. I redid pretty much every wire to make them exactly to length and routed properly when building my MK3 because it bugged me.

I would not try to crimp a new terminal properly given your admission of mechanical ability. Getting a good crimp with a small connector is tricky without experience. It would be easier to order the same connector wire precrimped and replace the end of the wire. Then do a splice a few inches higher. Or just order the parts.

If you need to replace a pin on the PCB, it MUST be done carefully or you'll lift a trace. It is a job that should be done with a full soldering station. However I could do it with a candle and a nail in a zombie apocalypse. The trick is in only barely heating the pin enough to melt the solder completely. That requires a soldering iron tip with as much heat mass as possible so that you do not need too much heat to compensate for the temp drop upon contact. If none of this makes sense, just buy the replacement parts.

Sorry for the bad day, seriously.

[–] j4k3 7 points 4 days ago (2 children)

I have too many lithium polymer batteries in my spares drawer to justify buying. I think they are easier to design into 3d prints and make more sleek projects with. The cylindrical cell and holder creates a size constraint for your projects. That constraint is not super convenient when used with circuit boards. If you get something like an ESP32 board that includes a batman chip, it is quite easy to find a lipo that fits in the same form factor and is very compact in my experience. I tend to make things over engineered to the point I don't finish a lot of them though, so perhaps a cylindrical cell in a larger enclosure would get more projects completed.

[–] j4k3 31 points 4 days ago

NVCC is still proprietary and full of telemetry. You cannot build CUDA without it.

[–] j4k3 2 points 4 days ago (1 children)
[–] j4k3 6 points 4 days ago (4 children)

Ethically, it is probably a holy grail. Plants are showing more and more signs of awareness within their environment. It seems all complex life basically is a vessel for a microbiome in recent research.

[–] j4k3 1 points 4 days ago (3 children)

The only time I rode with close gearing was crit racing. I rode standard 53/39 11-28 through the 8-11 speed eras on road most of the time. That worked well for pretty much everywhere for me. I can get away with never using my inner ring so long as the slopes stay below 6 degrees. When I first started commuting hardcore, I rode a 55/39 with a dura ace triple FD and a range of everything from 11-21 - 11/23 - 11/25 - 11/28.

You need to know your rear derailleur capacity to know what will potentially fit.

Unless you're trying to improve your times on a 66 mile round trip daily commute to work, or racing where the differences between riders is miniscule and the perfect gear to sit on a wheel might make of break your race, I would go for the widest possible range your FD/RD can handle. You'll never regret having the extra easier or harder gear to pedal in. If you are never pedaling down hill or in a tailwind, skip the hardest end. If you never see a climb skip the easier. If you like to explore and go wherever life takes you, keep your range as wide as possible. If you do not have the ideal comfortable gear, spin the lighter one faster and consider it cadence training. If you keep at it, within a few weeks you will begin to have a faster average cadence. This is part of race training as higher cadences are more efficient overall. Some people train on a fixed gear or single speed at times to push themselves to higher cadences in unique ways.

 

This place seems dead. I was skimming some stuff to make a few posts, after posting a basic casual conversation, the negativity shut me down like usual. I am sitting here with 5 tabs and some interesting stuff, but I'm totally disinterested in trying or even spending any more time here this evening. What value does that add for anyone when this place is dying a slow death of disinterest and low engagement? I never add negativity. I only ignore and block. I never discourage because I know I would be shooting myself in the foot. Why is this not fundamentally standard logic for everyone. If you disagree about opinions, appreciate diversity and ignore or better yet discuss. Anonymous negativity to strangers is psychotic behavior that should never have existed in the first place. It is not normal. It is no different that walking up to a stranger in a supermarket and yelling at them for what they wear or how they talk. That is crazy stupid.

 

The plague of NIMBY's may yield if a real plan is put in place to rebuild better. Vast areas could be rezoned for density. A way of addressing the enormous number of displaced people could also address the largest homeless population in the USA. The city that defines urban sprawl could be redefined. How does this play out?

39
horny steerule (lemmy.world)
submitted 6 days ago by j4k3 to c/[email protected]
 

1920 Popular Mechanics article on Archive

 

1k lines of code, 5 main functions that are scalable in complexity. Small code to run agents, not small models. Tools plugins framework and tools sharing hosted on huggingface. Runs with open weights self hosted or proprietary inference models.

6
submitted 1 week ago* (last edited 1 week ago) by j4k3 to c/wotd
 
  • verismo - An artistic movement, from 19th-century Italian literature and opera, in which rural and everyday people and themes were treated in an often melodramatic manner
  • naturism - (1.) The belief in or practice of going nude in social settings, often in mixed-gender groups, specifically either in cultures where this is not the norm or for health reasons. (2.) The worship of the powers of nature.
  • naturalism - A movement in theatre, film, and literature that seeks to replicate a believable everyday reality, as opposed to such movements as romanticism, surrealism, or abstract art, in which subjects may receive highly symbolic or idealistic treatment.
11
verisimilitude (self.wotd)
submitted 1 week ago by j4k3 to c/wotd
 
  • verisimilitude - the property of seeming true, of resembling reality; resemblance to reality.
 

If I procrastinate tomorrow I will still have time

 

The warning that cell service may be down, implies potential for an outage to outlast the battery backup. This message, coming on January 6th, in California was very initially alarming to me. Shutting off communications in this fashion is exactly how a coup or government change plays out. OC is a large population consisting predominantly of Democrats. I don't recall any instance of the power utility sending such a message in the past. This is one of the most corrupt power utilities in the nation with the highest price rates and a massively electrified population. One would think they could keep the power on even with the relatively modest 60 mph gusts expected.

For those that do not know, high coastal winds are usually due to the ocean and deep water upwelling in and around the OC coast. Just off shore the water gets very deep fast. The offshore wind pattern pushes the solar warmed water on top of the sea away, and draws up the cooler water from below. The deep sea water is more stable in temperature and keeps the coastal microclimate warmer in winter and cooler in summer. It can cause massive differential temperatures under the right circumstances and drive some wacky weather patterns.

Not to be alarmist, but if you see something odd on Jan 6th of 2025, you mention it, especially here with concerned friends.

 

I was watching an upload by Prompt Engineering on the SmolAgents agentic rag project. In it they talk about the importance of forming questions in the same affirmative voice that the LLM will respond with. My understanding is fuzzy here. Language is not my strongest subject. So maybe ELI5 please. What is "asking questions in an affirmative voice," and more importantly, what is it in contrast to other forms of voicing?

 

Adventures of an American tank crew in the North African desert in World War II during the Allied retreat after the fall of Tobruk.

I watched this last night and made it all the way through (rare for me, like high/dull praise). The 1943 angle was probably more interesting to me than the plot and dialogue. It had plenty of stereotypes expected from WW2 raging at the time, but no fascist level propaganda IMO. The racial angles were interesting in the attempts to ameliorate and contrast IMO.

 

I've managed to do reverse engineering of circuit boards using GIMP and rough alignment of layers using images like the one pictured. I want to use images to reverse engineer parts in CAD, but the minor lens distortion of a camera on a phone at ~20cm high on top of a stack of objects to keep it eyeballed flat is not enough. The result is off in multiple planes. There are minor errors in my curves in the transparent CAD part pictured, but the hole pattern is correct. The picture has been calibrated to 20mm against the ruler. Any suggestions on how to make this usable for replicating the ellipse that crosses the holes ±0.05mm?

 

I am trying to understand the limitations and weaknesses of a system of complex human social hierarchical display based on reputation and accolades instead of the accumulation of wealth. Academia is one such example of a hierarchy based on reputation.

What are the weaknesses of such a system, such as failures to account for human adaptation and growth? Where are factors that are not in line with meritorious achievement and the scientific process? What changes could be made to improve the social system of a reputation based hierarchy?

This post is heavily abstract and conceptually framed in layperson terms. Feel free to rephrase and infer meaning. I am thinking about a distant science fiction future when accrued wealth is no longer an adequate form of human hierarchical display, and the benefits, frustrations, and failures of such a system.

view more: next ›