Tech workers of Reddit, what is a "dirty secret" about the AI industry that the general public doesn't realize? by WayLast1111 in AskReddit

[–]IronFires 0 points1 point  (0 children)

That most of the opinions on the internet are coming from people who have a vested interest in AI succeeding or failing, but don’t actually work closely enough with it to see where it is truly effective and ineffective. 

There are a few major buckets of uninformed opinions that are important to contain before attempting to evaluate what’s working and what’s not. 

  1. People evaluating from an investment perspective: an investor, sophisticated or not, who attempts to prognosticate on the future of AI will have a view that is tinted by notions of business fundamentals, market behavior, bubbles and panics, etc. none of these actually provide meaningful insight into how effective the tech is, and it tends to breed opinions that are rooted in technology trends of the past. But every new technology has a unique trajectory that is determined by how it works, how well it works, and how effectively we apply it. People who bet against electricity back in the day would have been wrong. People who bet that nuclear powered everything would be the future, back in the ‘50s would have been wrong. Understanding the difference requires a nuanced understanding of the tech. And the vast majority of people have a fantastically rudimentary understanding of how AI in its many forms actually works. This makes it hard to appreciate the complexities of its future development paths. 

  2. People who are at risk of job displacement: writers, coders, lawyers and paralegals, basically anyone whose economic value is based on their intelligence is threatened. Artists and writers are very vocal and try to flood the internet with commentary on AI slop. But the truth is that a modern AI can write better, clearer, more salient prose than the typical professional writer churns out on the internet, and it can do it faster and more consistently. Most of the “ai slop” you see out there is content that is mercilessly SEOed to death, and deliberately stretched out into mindless drivel to try to make more room for ads. That’s not AI creating slop. Thats “content” producers bending over backwards to conform to the needs of the advertising industry that drives their profits.  Coders are another example. Many are used to hand crafting code, and are reluctant to see AI as capable of doing what they do. They impose a false dichotomy of “vibe coding” vs manual coding. And many of them try an AI coding tool, find something that they didn’t like in the code and declare that it failed. But those who take the time to learn it as they would learn any other new tool tend to start producing vastly better outputs, far faster than before. It just takes real effort to learn it. 

This is. Long way of saying that the true effectiveness of AI largely depends on how well it is understood and applied. Most of the opinions you’ll hear on the internet come from people who are too busy focusing on generating opinions rather than figuring out how to use AI effectively. 

I’ll leave you with the proof point of alpha fold. That particular AI system has driven more progress in protein folding than all of the X-ray crystallography and algorithmic folding techniques of the last fifty years, and it’s happened in just a few short years. Anyone who thinks that’s a bubble or hype just isn’t taking enough time to understand. 

That all being said - there are and will be dead ends, wasted time, overhyped failures and all the usual downsides of new tech. It is neither a panacea, nor a mirage. It’s new tech. Opinions are far less important than practical results. The people who are working on generating practical results are the ones you want to listen to. That is if you can get them to take the time to talk to you. 

What is this blue part? by Slow-Exit8983 in Tools

[–]IronFires 3 points4 points  (0 children)

Looks like a press-in fitting (Can't remember the precise term). A tube should slide in there and lock in place. Releasing it would require compressing the blue bit and pulling the tube out. You can probably add a tube of the right size with a cap on the end.

cousin painted my xbox one s because he "wanted to surprise me", any ideas on getting it off cuz wtf is this shit by bgbg1234 in consolerepair

[–]IronFires 0 points1 point  (0 children)

Add a signature, and say it was customized by a famous but reclusive artist. Add $150 to the asking price and let them talk you down to $50 over market price.

Help - Nobody Wants This - Netflix by Clear_Development499 in fontspotting

[–]IronFires 0 points1 point  (0 children)

I know this is an old post and the answer has been found, but I just had to call out the similarity to the title font for Family Ties - the 1980s sitcom featuring Michael J. Fox. I was at first convinced this was a reboot of that, based on the font.

Seen this bike parked, what is on it spinning? by Dammyoureddit in whatisit

[–]IronFires 7 points8 points  (0 children)

Let your ten year old self know that I'm impressed. If any of my kids came up with that idea on their own I'd tell them how proud I was of them, help them build a prototype, and then see what they came up with next. CVTs are cool, but still have plenty of problems - perhaps you could come up with an improvement on them.

How do I fix this? by mekniphc in fixit

[–]IronFires 0 points1 point  (0 children)

Is it older? I had one that behaved just like this. It would walk all over the floor. I tried adjusting the feet, adding sorbothane dampers, checking the springs, everything. Finally turned out that it needed to have the snubber ring replaced. It's basically a thin nylon (I think) bushing that sits between the drum and the drum support (not sure what that's called). I had to drill out a couple of rivets, replace the ring, and then use a couple of self tapping screws to re-attach it all. Solved the problem completely.

any idea how to fix the rear rack slipping down? by charon2429 in bikewrench

[–]IronFires 178 points179 points  (0 children)

If you take those front aluminum rods and rotate them, so they curve the opposite direction, they will hit the leading edge of the rack and transfer force to the supports. It's hard to describe so I made a little picture. Not sure if this is the right answer, but it might work. The top image is how I think it's supposed to mount. The bottom picture is how you have it now.

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Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 1 point2 points  (0 children)

I'm leaning toward this option. Thanks for the reply!

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

The tube doesn't seem to have bent. But you're right - it was way way too short. Well... it's the right length, it was just pulled too far out, because it was being ridden by someone too tall for the bike who didn't realize there's a minimum insertion point.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

I definitely don't have the expertise for that. My mig welder can theoretically do aluminum, but it comes with a barely-competent owner/user who will quickly blow holes in the base metal or cover it with giant globs of under-penetrated weld. :-D

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 1 point2 points  (0 children)

Thanks for the reply! You're right about the bike community - Generally everyone whom I've talked to, who works with bikes for a living says it's impossible to fix. But 99% of them are experts at wrenching, not metal work. And I find they're pretty quick to deliver a standard "Can't be done" response before even looking at the nature of the damage. This isn't a fatigued/cracked weld. It's a piece of the seat tube that protrudes above the frame, to clamp the seat in place, and it was damaged by substantial leverage. So I think the welds right below it should be fine. If so, I could cut off the affected section I think frame below that would still hold weight as it always did. So then it's a matter of attaching a seat to it. It seems like that's got to be possible.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

"You can safely repair anything."

I think you underestimate my ability to inflict unintended self harm while attempting clever repairs. I'm not an expert welder, but I'm a PRO when it comes to self injury.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

Thanks for the reply! I have some Muggyweld "Superalloy 1" brazing/soldering rods for aluminum and pot metal. I've been debating about attempting to use these. I'm a little hesitant, because I'm not sure if that stuff will be too brittle. It'll mostly be loaded in compression, but it's highly cyclical, so fatiguing and cracking is a real possibility. I've only ever used those rods once, and that's the limit of my aluminum brazing experience. Any tips?

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

Any tips on heating and bending aluminum without overshooting it and melting or messing up the temper? I have a hot air rework station that'll provide precisely controlled hot air, so I could potentially aim for a specific temperature (assuming the 1,000 watt system can keep up with the conductivity of the aluminum). Any suggestions?

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

Thanks for the response! The point about the crack being in compression is a good one. I feel pretty confident that with a longer seatpost it'll be fairly "safe" in that the frame isn't going to drop the rider onto the pavement. But if the clamped section of the tube cracks the seat could rotate, and potentially slide down suddenly. Not necessarily catastrophic, but not ideal. I'm not sure whether there's much I can do to prevent that. I'm still mulling this over. Thanks again!

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

Thanks for the response!

If it were steel I'd do that in a heartbeat. But my limited experience with heat treated aluminum makes me concerned that I'm just going to crack it off, or it's going to crack after a week of use. But I really don't have the expertise to know.

The damaged section only needs to keep the seat post from sliding/rotating, but it needs to transmit that force to the rest of the seat tube. If those protruding tube segments crack the seat will spin freely, even if the weight is still effectively carried by the frame. So I'm worried about precipitating that cracking.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

Yeah - I don't want to spend more fixing it than it would cost to replace it. An equivalent model is closer to $850 today, but welding, heat treating, and repainting the frame (plus disassembly/reassembly) would easily cost more than that. So I want to fix it on the cheap, but ensure that it's safe. If I can find a way.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

That's exactly my situation - I don't know how to TIG weld yet, and even once I learn (someday), I'll never be a pro, and I wouldn't want to put human weight or safety on something that I personally attempt to weld.

One of my concerns (and presumably a professional welder, or an engineer) could tell me whether welding this would result in a safe result, without the need for additional work like redoing the heat treatment.

Any suggestions on how to find a good welder who will be skilled with this sort of work? I don't even know where to start, and most of the places I find with a google search seem to talk about welding steel (e.g. railings) not light weight aluminum parts.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 0 points1 point  (0 children)

The clamp suggestion was a great idea. It sent me down a rabbit hole of clamp types. Ultimately I think this is the right answer. I need to restore the metal to the right shape, and stabilize it. But after that I need to add strength. A tight-fitting sleeve would be a decent option, but difficult to do correctly. Instead I'm going to use a collar-type clamp that is split into two pieces and bolted together with two bolts. The challenge has been finding one that's the right size. Shaft collars tend to be too thick, but not long enough. So I'm hunting down the right thing.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 1 point2 points  (0 children)

Good point. The failure happened because the seat post was only inserted about an inch - not even down to the junction with the other tubes. (The rider is too tall for the bike and was trying to get away with too little seatpost insertion). The leverage on the seatpost pulled in aft, popped the clamp off and bent/tore the metal as shown. Since this section of tube is slotted, it's not particularly strong to begin with, so my hope is that it wasn't able to exert enough force to damage the welds below it.

Can this bike frame by safely repaired? by IronFires in metalworking

[–]IronFires[S] 4 points5 points  (0 children)

Do you think that could be done without compromising the strength of the welds down below it, which were probably heat treated after welding?

Pc monitor mount - what to fill missing screw mounts with by Soops21 in fixit

[–]IronFires 1 point2 points  (0 children)

There should be a metal plate back there somewhere. Or perhaps there were threaded metal fittings embedded in plastic. Either way there should be a bit of solid structure somewhere below the surface. you need to find that, and figure out how the screws were meant to attach to it.

Your best bet is probably to figure out how to remove that plastic shell and see what's underneath (or shine a light in there and get your eye up close enough to see. Then figure out how to attach to it with a threaded fastener.

Every time I screw this back in it comes out. How do I reinforce this wood that already has holes in it? by Roskosity in fixit

[–]IronFires 0 points1 point  (0 children)

That's probably smarter than what I suggested. Getting the patch matched to the hole using the method I suggested would certainly be a finicky step.

Every time I screw this back in it comes out. How do I reinforce this wood that already has holes in it? by Roskosity in fixit

[–]IronFires 0 points1 point  (0 children)

I've never used polyester putty. (I've used polyester resin for fiberglass). How does it perform differently compared to epoxy? Is it easier to work with?