genius
2d 21h ago by lemmy.blahaj.zone/u/not_IO in lemmyshitpost from lemmy.blahaj.zone
Not needing food or shelter anymore because you're dead is also great for your budget.
Going out with a bang is great for everybody’s budget!
Probably until you get to the megaton range. At that point I suspect you're probably bringing a lot of people with you.
And the environment!
Na, it sounds good but your ungrateful relatives take all your money.
Wont even take off
This is called the Jesus nut. It holds the main rotor onto the helicopter. It doesn’t have any redundancy, so if it fails, you’re going to be meeting Jesus in moments.
Thankfully this one is built of many redundant layers instead of just one layer of metal.
TIL there's many Jesus's nuts are all over the sky.
Chem trails! Jaysus is nutting!
To be fair, if you don't have the files. This is an easy way to make a prototype and fit it, and then if it fits you can order it in metal. This is a cheaper proces in iternating in metal from the start
If the choice is between being out $1,590 or plummeting to my death in order to save a few hundred bucks, then I'll just pay the $1,590.
They call it the Jesus Nut for a reason.
Because it makes Jesus Nut?
Because if it fails, only Jesus can save you
Bull honkey, knock the rust off 'er, slap on some grease and she's good as new
Got that Alaskan Airframe and Powerplant license, I see.
I reckon that's right pardner
Spoken like a true Boeing engineer.
on the radio "We got him, back him and tag him."
Ain't no whistleblowin goin round here
That's what has me grinning! I'm not replacing a Jesus nut with anything that didn't come straight from the manufacturer.
I've actually flown Robinson helicopters, and there's no nut that looks like this on the helicopter.
So, probably a joke.
Yeah you just have to deal with mast bumping, as if thats any less worrying.
Mast bumping is such a gentle term for the main rotor just fucking off and the helicopter going from an aircraft to a falling object.
Ah … ! What’s happening? it thought. Er, excuse me, who am I? Hello? Why am I here? What’s my purpose in life? What do I mean by who am I? Calm down, get a grip now … oh! this is an interesting sensation, what is it? It’s a sort of … yawning, tingling sensation in my … my … well I suppose I’d better start finding names for things if I want to make any headway in what for the sake of what I shall call an argument I shall call the world, so let’s call it my stomach. Good. Ooooh, it’s getting quite strong. And hey, what’s about this whistling roaring sound going past what I’m suddenly going to call my head? Perhaps I can call that … wind! Is that a good name? It’ll do … perhaps I can find a better name for it later when I’ve found out what it’s for. It must be something very important because there certainly seems to be a hell of a lot of it. Hey! What’s this thing? This … let’s call it a tail – yeah, tail. Hey! I can can really thrash it about pretty good can’t I? Wow! Wow! That feels great! Doesn’t seem to achieve very much but I’ll probably find out what it’s for later on. Now – have I built up any coherent picture of things yet? No. Never mind, hey, this is really exciting, so much to find out about, so much to look forward to, I’m quite dizzy with anticipation … Or is it the wind? There really is a lot of that now isn’t it? And wow! Hey! What’s this thing suddenly coming towards me very fast? Very very fast. So big and flat and round, it needs a big wide sounding name like … ow … ound … round … ground! That’s it! That’s a good name – ground! I wonder if it will be friends with me?
You've flown Robinson?
Willingly?
And lived? Brave soul.
I'd rather plummet to my death.
Good news is, that part ain't getting off the ground. Bad news is, the rotor might get kinda fast first
No. No.
For this part? No. You want the real deal. The proper metal. The proper alloy, annealed correctly.
Yeah, but to get there, you need a prototype. There's nothing wrong with testing the fit using 3D printing before you order a copy in real materials, just don't put it under any load.
You could print it with normal plastic filaments, but those can deform and screw with the measurements if you've got a really tight fit, so metal printing is a good use there.
Aerospace manufacturing has a paper trail longer than you can imagine. The company selling this part can tell you (well, the FAA) the exact ingot out of the foundry and every single process and every person who has touched it since then.
No machine shop will take this job; the moment this guy is unable to produce a serial number and paperwork from an approved manufacturer (likely during preflight if not installation) the FAA will track down the owner of said shop. At best that owner will lose their business and pay a massive fine, at worst spend a good long time in prison.
The FAA doesn't fuck around and for that I am thankful.
Also, one-offs aren't really allowed outside of r&d. Everything has to have at least one piece in a batch go through testing, including destructive.
How is the machine shop supposed to know it's an aerospace part? The customer could just give them a reverse-engineered CAD file.
(Academic question, because making this part actually work will cost >$1500 without economies of scale)
Depends on how much effort went into reverse engineering the part, but most likely when tolerancing enters the conversation. Most machine shops aren't able to hit those tolerances and would laugh you out of the shop.
A shop that can hit those tolerances will kick you out of the shop; there's a good chance they already work in aerospace. They have a deeply vested interest in avoiding the accompanying FAA inquiry should it be installed or, Satan forbid, actually flown.
A non-aerospace shop capable of meeting those tolerances would start laughing at the desired price point. Purchasing a suitable blank alone would cost over $1500, much less cover the actual machining.
A part like this can have some tolerance because it experiences wear and tear and oxidation, if it had to be down to a few microns perfection, the helicopter wouldn't fly in both hot and cold temps even on day one. Die and investment metal casting especially with CNC machining, which are common enough processes in metal shops, can actually get down to single digit microns. But this is all moot as no one would ever do this for many reasons.
It would have to be an experimental aircraft. Someone died recently when they installed a 3D printed intake that melted on their experimental single seater.
I get what you're saying but this is what is called the "Jesus Nut". That's because it's one piece that essentially holds your entire helicopter up. To quote the Wikipedia page: ..."whose breakdown would result in catastrophic consequences, the suggestion being that in such case the only thing left to do would be to pray to Jesus, or that the component's importance could be likened to the importance of Jesus to Christianity."
You don't prototype this. You don't make these. You get the tested, real part. There is no scenario in which making your own is advisable. Unless you're an engineer for an aircraft manufacturer who is going to be doing rigorous testing then you should just buy the part ready made and certified.
Lol the meme is the picture on the wiki mirrored and edited
no scenario
Absolutes always get me scheming. What if you're stuck on a deserted island with only a working 3d printer and a helicopter missing this part? What then? Yeah probably swim.
Use the radio in the helicopter to call for help?
Gilligan already broke it.
I'd say cry, the small loss of water will bring the sweet release of death one step closer.
You build a boat out of the helicopter and 3d printed parts. I'll be a bad boat, but the best case scenario for this 3d printed part is that it breaks under static load
If an aerospace engineer made one of these he would no longer be an aerospace engineer.
Everything else you said is correct.
Hah, Jesus nut
So the design has never changed since it was made? The engineers have never needed to figure out an upgrade or slightly different way of doing it?
Of course randos don't make them in their garage, but somebody does make them, and I don't see a problem with experts incorporating this into their workflow. I don't know why you do?
I think we've lost the context here. The person in the photo self-describes as a consumer - they should not be making this. That's the joke.
Somebody who would be prototyping something like this works for an aircraft manufacturer, and there's probably less than a thousand of such people in the world. If you are one such person you know so.
I'm one of those people and there's absolutely no way I could produce a safe copy of this for less than $1590.
The part already exists though?
You can also print in different metals with various processes like laser sintering, still though, there are some things you might not want to skimp on: Probably best to stick to approved parts.
It wouldn't surprise me if such a critical part was cast as a single metal crystal. The stresses on that rotor mist be unbelievable.
Pretty sure you don't want a be doing that with an aircraft.
I'm sure it's safe if you can do it correctly, but I would not trust myself like that
I printed an ABS powerwheels gear out for a friend to test the fit. 100% infill, tt was chonky, was going to get it redone in nylon.
it fit and was ripped to shreds in 30 seconds :)
Try 200% infill next time
Have you seen the prices on the non-Euclidean filament these days? Only Voidstar labs can afford that shit.
FYI: Plastic Welding is a thing that exists. Use it literally all the time to fix what my kids break.
Power Wheel Wheel included. Takes literally seconds to fix a crack
Gear D was what broke, it delivers the full thrust to the final axel and take most of the force when the wheel take a hit. there's no welding that
You needed to increase walls
At 100% infill, it's all wall. Though the better bet is probably using the printed part to make a mold.
Not sure, might be different. Like the infill might go side to side but walls go up and down. So increasing walls might still give more strength.
it's a gear, so you need the layers to be perpendicular to the rotation to give it a chance, but the final drive interface came up off the gear like a tophat. It was not a good candidate for FDM. Realistically, it wasn't a good candidate for resin either. The tophat really needed to be metal with an interface into resin or nylon for the gear to gear surfaces.
nah there's a difference in print line orientation on all the slicers I've used. When printing functional parts like that, especially mechanical ones, you really got to pay attention to printing orientations
Yeah, even annealing it didn't help much. I think the original part of the injection-molded nylon was a bit under-specified.
It would have been a good project for metal, but it would have been 4 years in the box and cost more than the original ride-on.
For a use case like this it would be a good use case to do 3D printed casting.
3D print the part. Mold out of silicon. Then make the final part in resin.
Or just buy the real part.
There's also ways to make plastic parts via injection at home.
Resin was one of my early thoughts. The original Nylon is pretty tough, and they kept breaking gears. (I think he was overvolting it) He tried replacement boxes but they just broke immediately, he managed to get a couple of original gears at $80 a piece, but they didn't last long either.
I think the right answer would have been to replace the motor with something that had a higher Kv and done a belt drive. (like electric skate parts with a little more ratio)
I bet there's some good threads in RV cars forums for stuff like this.
I didn't even consider belt driven.
Someone who owns a helicopter but is bitching about spending $1500???
People think private pilots are rich because airplanes are expensive. They're not - they might be upper-middle class (with a mortgage and other debt) but most have to budget their aviation spending. Truly wealthy people don't fly their own planes, they hire pilots and crew, and probably have no idea what a Jesus nut looks like.
That said, this is obviously satire/bait.
I had to check up Jesus nut, and learned that's what it's called because it's the one you pray will hold because if it don't you crash. Hahaha
I know the post is a joke but it's more like "somebody owns a helicopter rental business and they're bitching about repairs on helicopters they themselves don't pilot so they themselves aren't in danger"
Helicopter landlord!
land?... Helilord.
The etymology of helicopter is actually a compound word divided in an unexpected place:
- "Helico" means rotating or spiral.
- "Pter" means wing, as in the word "pterodactyl."
So if we're gonna bring that into another compound word, we should probably chop it in the right place: pterlord.
TIL 👍
And one step closer to turdlord.
Aerolord.
I just realized we will probably have aerolords in a couple decades. I should invest in clean air and stockpile it. Maybe it's my chance to be a lord. I'm going to need a compound, barbed wire, and machineguns too. Shit, it's a lot of work being a lord. I think I'll just pay for an air subscription.
Skylord?
Oh, this perspective didn't occur to me, it makes everything so much worse 😅
How do you think they managed to own a helicopter?
Unfair. I've spent my entire life not buying expensive (or even cheap) helicopter parts and I still don't have a helicopter.
I do have a 3d printer, though...
Hm...
Jarvis! Preheat the print bed.
And now you've just given Boeing executives some great ideas how to further reduce costs! I don't thank you!!
I have news for you:
3D printing is very common in the aviation industry by now.
They don't exactly use TPU and Bambulab printers, though... ;-)
Oh yes they do.
Aircraft crashed in Gloucestershire after 3D-printed part collapsed - BBC News https://share.google/v8NcjqE0tAK34AiI7
IIRC that entire plane was a DIY plane from a popular kit, not a commercial vehicle.
(not clicking on a Google shortlink)
TPU? You'll get PLA and like it
"Hey, John! How much are we paying those 3D printers again? I found one here that looks like it would do just the same job for much less!" -- quote that will show up in a leak in 2032 after a handful of planes crashes.
ChatGPT said it would work.
Big Helicopter hates this one weird trick:
And so do the people inside the big helicopter!
And those within range of its flying blades
3d print part, with added shrinkage factor Finish 3d printed part. Cast the print in cement. Burn the plastic out the new mold. Fill mold with the alloy of your choice. Pre-finish, finish metal part. Congrats, many 1000s spent on furnace materials for a 1.5k part but a new understanding for lost wax casting.
3d printing is the king of prototyping. Just print the part with sprues and all. Do a one off, write SOPs, prepare for full production. Profit.
Discover that 3d printing can't meet the precision requirements and cast metal won't meet the mechnaical requirements, gear shears, make peace with your fate, fall from sky onto local orphanage's annual puppy adoption drive.
Those orphans aren't orphans any more... Progress.
Real talk I cast turbine blades for IGT and Aerospace (not an engineer, just a floor worker). It was my impression that inside those turbines is an incredibly hostile environment (hot, acidic, g-forces), and still we cast them. We did some single crystal stuff for the really demanding parts. Is cast metal really that flawed?
Out of all of the things that you would want to be comfortable with taking risks on, the Jesus Nut on a helicopter is not one of them.
There are no fallbacks if that fails.
The only thing that can save you is a miracle from our Lord and Savior, Jesus Christ, if the Jesus Nut fails on your helicopter while you're in air.
No, but metallurgy isn't a straightforward peocess like they were kinda implying. Gears, especially extremely high performance ones like in aerospace, have partial hardening, surface treatments, even exotic things like mixed alloys to ensure they meet the mechanical demands required of them. You can't simply cast a gear and expect it to work - in this case if you tried as they were describing you'd likely just have the teeth shear when you tried to take off and you'd be fine, but there's a real good reason that part costs as much as it does and it's not just the administrative costs that come with aviation part documentation requirements.
Casting itself is fine for many applications, and advanced casting techniques are incredibly complicated and suitable in one form or another for many applications, but not all things should be cast.
It was me kinda implying it. Just making a shit posting comment in a shit post community.
Oh lol, mixed up you and bizarroland.
Is fine. Didn't think I'd TIL on a shitpost comm, but you sent me down a wikihole. Always fun
Oh, I love how rabbit-holey metallurgy can get. One of my favorite topics is the processes used to cool hardened gears that have to be ground. Keeping the temperatures below a certain point so that they don't lose the temper is surprisingly difficult even with external flood cooling (or working fully submerged), so you wind up with insane looking profile cutters that have cooling lines built into them directly.
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Also the techiques to monitor the diameter of abrasive grinding tools get wild, like monitoring the capillary pressure of the coolant spray and similarly insane feats of precision.
That cutter is fucking art. The blades we ran had a ceramic core. Then the wax mould over the ceramic. Lose the wax, cast, then beat the shit out of it till the ceramic comes out the blade, now there are cooling channels built into the cast. Complex geometries too.
I was asking why the blades needed a ceramic coating before going into the turbine. Surely we could just heat treat the blades to whatever hardness required.
I was then informed that inside turbines it's so hot the Hydrocarbons split up to free Hydrogen ions and the left over. The ceramic is there because it's a highly acidic environment.
Actually that story is my go to "how to mentor story". I asked why we coated the blades in ceramics. The engineer told me it was really hot in there and just waited for me to twig. I didn't, then he said it was so hot hydrocarbons break up into free hydrogen and the rest, and then waited. Then I caught on, I have no doubt if I hadn't then he would have said "free Hydrogen is the literal definition of an acid" and waited. Then "Acid eats metals like titanium alloys" wait. "Then Acid doesn't eat ceramics" wait. I genuinely try to lead people to answers that way just because the way he made my dumbass feel like the smartest tool in the room. Actually, I asked why we pre finished the blades to near mirrors just to acid etch them dull again, and was told it was for the ceramic coating.
In some past aerospace work, I've seen requirements where, if you do use cast parts, you have to cast extra parts on each lot to use for destructive testing. Specifically to inspect the cross sections for flows or grains or whatever they want to look at.
Back maybe 25 years ago I got to tour inside Howmet in Whitehall, MI as part of a class. They did casting of turbine vanes for jet engines. Damned impressive process, and thorough quality checks x-raying every one for flaws. Finding out that each vane has coolant channels cast in was interesting, and a bit unnerving, since they get operated at temperatures above the melting point of the metal! I always think about that when I get on a plane.
Dead orphans are still orphans.
Just get one of those million dollar printers
Dissect a mosquito and use its proboscis
LOL
Discover that 3d printing can’t meet the precision requirements and cast metal won’t meet the mechnaical requirements, gear shears, make peace with your fate, fall from sky onto local orphanage’s annual puppy adoption drive.
Bold assumption to make that a home-jobber would get you up into the sky.
I bet that if you were dedicated enough, you could probably make a home helicopter.
Whether you could survive the first or the tenth flight, that's a different story, but I bet you could get into the air with something that was homemade.
Yeah, there's tons of plans out there for DIY helicopters you can get from the hobby aviation community. Usually the sticking point is making the rotor blades themselves, but I've seen some people get off the ground with carbon-fibre laminate blades. Not sure I'd trust them personally but it does work.
More interesting than working until I have a heart attack
Cement? They make sand specific for casting. Generally you don't want to play with heating cement, right?
EDIT: Oh you mean dry cement?
Industrial high precision lost-wax usually has a mold made from many layers, often either done in traditional monlith casting frames (big slabs of cement or plaster or casting sand or etc) or formed by dipping the parts into various cement slurries (a bit like a candle. The first few layers are generally a low-additive "print coat" made from ceramics akin to porcelain (that won't react with the material being cast), and then for strength they're bulked up with thick layers of stuff that usually has been bulked up with sand and recycled shells of precious castings that have been crushed down.)
It's a fascinating process.
I'm not sure I've ever fallen more in love with a process than lost wax casting and its foam cousin, from the moment a tutor showed me a polystyrene cylinder head I was hooked lol. I'll get a setup going some day.
Just a Lemmy shitpost comment, don't think about it too hard Sure fine sand and a runny plaster, ceramic capture detail. But you still bulk it out with rougher stuff to give the mold heft.
Maybe not cement. But I also wouldn't recommend doing back yard casting for Life critical parts if you're asking what your detail capturing materials should be and what your bulking out materials should be.
There are Casting Wax Filaments, btw. You don't need to use plastic if you're going to burn it out.
No notes, that's awesome!!!
I have zero intention of getting into 3d printing or back yard casting. But it's cool that intersection has products.
Wasn’t there a news story recently where someone had actually done this and (obviously) died?
Yeah, this is the before photo.
I think it was an airplane air inlet duct that melted and collapsed. And it was bought from a 3D printing supplier, not printed themselves. The person aboard lived. So it was more subtle, which makes it even more insidious. I.e. even for a simple plastic tube you need the expensive part, for non-obvious reasons.
RIP
AND TEAR
UNTIL IT IS DONE
You are ready to own an airplane if you can wake up in the morning, burn a $100 bill and flush it down the toilet without feeling anything.
You are ready to own a helicopter when you can do the same thing, except with ten $100 bills.
With a helicopter, I think you also need to be actively suicidal.
Not my video, but I did ride it that year at the World Freefall Convention.
Is that why those two helicopters crashed into each other in New Jersey?
Not likely, this would get ripped apart on engine start.
For a crash, you need to at least get to the part where you attempt a takeoff.
It's a Robinson. It crashed as soon as you thought about flying it.
One time, this was back in my skydiving days so a very long time ago, the drop zone's CASA 212 was down due to a bad hydraulic pump. The pump finally arrived and the DZO asked me to help him install it. He was a certified A&P, I just had a lot of experience wrenching on cars but it allowed me to get a lot of free jumps due to helping him out on things like this.
He handed me the pump, which was a LOT lighter than I expected and told me with a smile: "Don't drop it."
In inquired as to how much it cost and he replied: "$10,000."
I was holding a pump in my hands that weighed barely 10 pounds that cost more than my car (this was circa 1998 or so).
A couple years later the igniter box on the port engine died and I helped him replace it... That was a cool $15000. The engines were about $250,000 a piece back in those days.
With all the bad shit happening due to corrupt government agencies, it’s refreshing to read comments in this post about how the FAA is still anal as fuck like they should be, though flying on a Boeing still makes me nervous.
I honestly don't even believe that bolt is that cheap. I read horror stories about a set of 4 normal ass "aviation grade" screws that cost thousands of dollars.
Its the signatures that validate the screws that you're actually paying for.
Of course it's a joke, but I am genuinely curious about why the 3d printed part looks so shitty.
It just looks like it’s been painted in anti seize paste.
But I think it’s just a really bad print.
That's what I thought it was before I read the caption
Both photos are edits of the pictures on the wiki for "jesus nut"
15-20 years ago this is what we considered to be a good 3D print.
It looks like they 3D scanned it, and printed it rust and all.
It looks like their filament was too wet when they printed it, or they haven't calibrated the extruder properly. But wet filament is the usual culprit for stringy prints.
Looks like it's been sand blasted
Because it's a Photoshop job of an actual Jesus Nut. There's a wiki link in the thread and the page has this exact picture, mirrored and with no edits.
Ok, i'll bite: 3D print... in what material?
it's a joke. Morons are crashing planes with 3D printed parts made with plastics designed for Pikachu figurines.
If it only cost pennies to print it's not strong enough.
Yeah but it's some serious costs savings!
"Don't have to pay pilots if they're dead" -- some CEO, probably
PET, of course!
So is the bolt food safe?
It's PET, so probably.
Tpu
Please tell me they're not done, and they're going to make a ceramic moulding of it, to pour a very strong alloy into... And have the competence in chemistry, metallurgy, metalwork and engineering to know they have the precision and strength to make it work.
Yolo.
In this helicopter, we fucking ball!
That sounds like way more work for approximately the exact same result. If it fits, it fits :D
This is a kind of part you want a single metallic-crystal of.. anything less would we subpar and jesus. So no uncontrolled cooling of the cast for you. (or the rotor can decide this is a good day for a extra slow spin and no-flight.)
Stop trying to gatekeep for the fat cats in aviation safety. Your time of plenty is over. We're onto your lies.
P.S. Pretty sure that dumb little spinny blade on the tail isn't even doing anything. Just another useless part they want to sell you.
I'm sure it's not the Jesus bolt(?), don't worry.
He can just 3D print a second chance at life though, so you're being kinda whiney bro.
That should last about 0.7 seconds.
That's exactly the joke.
I was thinking the same thing! lol.
1590? Actually not even a bad price
Sounds about as based as using a madcatz controller to pilot a deep sea submersible.
It was a Logitech F710. Their mistake was not using the wired F310; much more solid and no chance of wireless interference causing input lag or accidental implosion.
Also, what's wrong with a controller? It's just another input, and a decent one for the use case. Could they have gotten a more expensive, proprietary one? Probably, but it's function would be very similar. Should they have maybe locked the key bindings? Yea, I think so.
That wasn't the cause of the implosion though.
To be fair, it wasn't the controller that failed.
The controller was one of the better parts of that submersible coffin
I see this guy decided to move on from fixed wing to rotary after his last plane....
https://www.bbc.com/news/articles/c1w932vqye0o
It's unclear if he printed it himself or the shop did. Probably himself, but man if it was someone else, I'd be pissed.
The Cozy Mk IV light aircraft was destroyed after its plastic air induction elbow, bought at an air show in North America, collapsed.
That seems pretty clear to me that he bought the part.
I thought the plane was bought at an airshow. My bad.
Technical details - https://assets.publishing.service.gov.uk/media/69297a4e345e31ab14ecf6e9/Cozy_Mk_IV_G-BYLZ_01-26.pdf
AI said it would be fine. Send it.
https://youtu.be/IJNR2EpS0jw
My submarine business is struggling with high "maintenance" and "safety" fees, send me your rates!
Can't use it as a mold to cast one out of actual metal?
cast metal isn't as strong as forged and machined.
So you could probably show it working on TikTok for several seconds, enough to convince people to try it.
Oh, OK then.
Yes, if you want to actually die soon after takeoff rather than have the plastic part safely fail before takeoff.
In case the question wasn't joking...
The real one is going to be made of a specific type of steel or other metal that is likely heat treated for specific properties under stress. It is also machined to extremely tight tolerances, because spinning gears can't just be 'close enough'. Not something a person can make at home unless they personally build custom parts as a home based business.
I wasn't joking, I was genuinely curious. Thank you for clarifying.
Aerospace manufacturing is fucking wild and is a rabbit hole worth diving into if you're looking for some of the finest engineering porn humankind has to offer.
My RC helicopter is sturdier.
This is such a perfect example of why right-to-repair matters: sometimes a “$1,590 part” is really just access. Also, that print looks solid — I’d still check material/heat/vibration limits on a rotor part, but the ingenuity is 💯
Maybe with metal 3D printing but even that will never be as strong as a machined part.
they used the joke as an opportunity to infodump, that's what we do here ^^
It’s shitposting, we shitpost here.
@unexposedhazard @not_IO people use 3d printing to make the mold using the printed part and then fill it with stronger material.... in this case the best option would be cnc lathe probably
See, what no one in here realizes is that the plan was to use this as a master to cast an aluminum one. Aluminium is a metal, and metal is strong. I'm sure everything will be fine. Bonus--aluminum doesn't rust, so it should last forever. OOP wonders why they weren't made of aluminum in the first place, and figures it's "planned obsolescence."
He's just waiting for his casting kit to be delivered. He expects to be flying again later that day.
Kidding aside using 3d prints as template for metal casting is a thing. Ofc i would be very careful before using a casted piece on a complex machinery.
Something like this ought to be forged so the grains line up with the expected stress.
Agustin Escobar be like
I nominate it for the Darwin awards...
That doesn’t look like any bolt I’ve ever seen..
ARE YOU OKAY, DO YOU NEED HELP?
Yeah! Repent! Depriving up-standing capitalists of their profits like that is despicable! You'll burn for that unless you come for to the Lord!