The design of train wheels is genius.
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- čas přidán 25. 09. 2023
- The design of train wheels is genius. If we have a train track with a slight curve, and we try to roll some basic wheels across it, we'll simply derail. Okay, you might say, it's an easy fix. You could just add a flange so it doesn't derail. And while the flange does keep it from derailing, it can't really navigate a turn. So how exactly can we solve the issue of a train negotiating a turn?
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Thanks for watching and happy printing!
-Steven - Věda a technologie
2 minutes, no need for 20 minute long essay to explain something simple and that's what I like
Bro's recording in a wind tunnel 😂
Haha too many printers printing at once
@@3DPrinterAcademythe software to reduce that is readily available man, I almost turned the video off 6 times.
@@Sir_Jynxto reduce what?
@@TechnicalParadox the background noise. Post editing software, recording software, virtual audio cables, AI software... lots of options to improve audio quality. Sorry, should have made the comment more productive. The constant loud to dead silent noise gate kicking in was almost more off putting than just the terrible recording environment to start with. Also different mic types do better in environments like yours that can help, but don't want to just tell you to throw money at it. The other options are often free.
Dude, don't make fun of him.
All the armchair experts being so confidently wrong in the comments and missing basic things like "these are exaggerated train wheels" has me worried
Yep, the majority of society are absolute idiots.
If you are only just now worried, I am worried. This trend is not new.
@@violahero4life indeed it isn't but this has got to be one of the bad ones I've seen. Usually it's a couple people but it's literally everyone
@@francoismurrell4604Train enthusiasts are well known around the world to be very "special" for a reason.
Doesn't matter where, they always have a high concentration of mental deficiencies. This comment section just puts it on full display.
The only armchair expert I see is the creator who clearly assumes no one watching has ever seen a train irl 😂
The background printers are a bit annoying but not as bad as people are making them out to be. Great video, really enjoyable use of modelling and printing to get each idea across too. Well done!
Thanks! I'm looking at getting a big studio space so I can have printers in one area and recording setups in other areas (so wont have to hear the super loud printers haha)
@@3DPrinterAcademy I've heard of some artists recording songs under a blanket in their bed, certainly not the most professional setup but it makes for really clear audio in songs, I'm sure it would work very well for soft voiceover too!
Unusual information:
Where there are curves in railroad tracks there is usually a device called a wheel greaser that - when a train goes over it and activates it - pumps grease on to the wheel flanges so they'll slide along the rails with less friction.
cool!
@@3DPrinterAcademy yeah! And, being kids, we'd try to make the thing work. But, as anyone with any sense (except a nine year old kid) knows, there's a difference between a 89 pound kid and a 200 ton railroad car.
@@samuelt5131 😂
I think everyone missed the part where he said they are an exaggerated example of train wheels. Should have said they are an over exaggerated example of train wheels.
Also left out that each set of wheels is in a truck or carriage that pivots. So you have slightly conical flanged wheels that are on carriages that pivot to conform to the curves of the track.
Then why didn't the video, at the very least, illustrate the real life wheels AFTER the "exaggerated" instructional models.. ??
@@jimstepan3038 It's really hard to see in real life since the equipment is so big. What he can do is 3d print a frame to couple two of the axles to demonstrate how they smooth each other out.
@@jimstepan3038Because the uploader assumed his viewers weren't 90 IQ apes. Obviously they were wrong with how many people like you are commenting.
Exaggeration and completely changing the base shape and then exaggerating that fictional version are two different things tho
As a trackwork engineer, this is somewhat true, but there are several other variables missing. First of all, the wheels are a combination of a conical design and have flanges. The angle of the tread bearing surface of the wheel is also closely matched to that of the rail head. Another variable is that on a mainline, the rails are canted, meaning they are angled inwards. This plays an important part with the wheel to rail contact. Lastly, depending on the speeds and degree of curve of the track, there can be an elevation change of the rail to help the train steer.
train tracks also are extremely gradual in their turns....the coning is VERY small and minimal. Its hard to see in person even
As a railroader not all the turns are gradual...we have hairpins on our mountain pass on my territory...I can see the rear of the train from the front engine and it's 7k feet long
@@damianmiller5805 that’s a long one.
@thatoneoperaguy9756 that's average for my territory...northern Montana
@@damianmiller5805 I know. Still long.
It makes sense where trains can go over 100 km/h
Bro is recording and his mom is vacuuming his room.
Great demonstration and vivid video to bring home the key principle of rail wheel design. Thank you very much.
It’s pretty cool if you think about how carriages are mounted to wheel bogeys as well. It’s like a multi-layer system where each layer deals with a specific problem. The conical shape deals with the wheels staying on the track, the wheels are then mounted on bogeys that can turn freely to allow this to happen as well, and all of that supports the carriage.
Forgot the part where this design completely negates rolling resistance, the force that causes heavy vehicles to deal exponential damage to the roads they drive on. Making it one of our most sophisticated engineering achievements.
How does this design negate rolling resistance? (I'm not trying to be a smart ass. genuinely curious)
Great demonstration!
Will you be publishing the print files for download or purchase? Great for teachers to print off for classroom demonstration. Easy enough to model myself - but if files already exist obviously easier
No worries if not, keep up great work :)
Best visual explanation. Ty
Thanks for the video. Don’t let the noise (sorry couldn’t help myself) of the unproductive comments keep you from making more of these awesome videos.
that "exagerrated" train wheel and rails could be a cool teaching toy if its downloadable
Me watching this instead of studying when i have a test tomorrow:
It would be great if these STLs were available so we could print these demos to help students understand.
Cheers for this. I had no idea that's actually how train wheels work.
Thanks for your crystal clear explanation 💛💙💚.
I love engineering and architecture.
Great to finally be getting a Micro Center in my state some time next year
Bro please answer my question if we join the tracks then can we make a perpetual toy?
As a train conductor this video made me laugh
It obviously doesn't require a great deal of intelligence to operate a train.
Growing up around trains, there's a huge concern about this......how will the load be stabilized? There's a great amount of rocking that happens with this design. Genius vibes this is NOT giving Bruh. Unfortunately. It's good that you are trying though.
@@outdoorsman7324 although it takes an intelligent person to know all the rules and signals, and also knowing what to do in case of emergency and problems.
Oh and yeah there's the part of the train preparation as well.
@@anjielenoir70s what
@@Kuro-UWU , no it doesn't... take a gander at the trucking industry. 🤣
Very well explained
Extra ordinary video, thx !
The flange wheels are mounted on bogies or trucks that move.
Instant Favorite!
My personal computer is from Micro Center. My family has been going there for years since Windows XP was the latest operating system.
Very genius engineer
TQ sir fr good explanation 🎉🎉🎉🎉
Cant you take the simple flange wheels but cut them in half and have them attach to eachother by C hooks?
Hi ,Great design for trains,my question is regarding switching tracks, thanks😊
0:46 the train wheels on the orange track are stabilized by the weight of the train aswell
Where can I find the files you printed? I want to 3D print that wheel and the track, they look cool.
Cool things!
Indeed!
okay, then what about the weight what is makes the train tracks fall sideway? In a weightless plastic modell seems to be ok
But suppose the tracks were banked for each turn? Then would flat wheels work during the twisting and turning process?
I'm getting My degree in train wheels rn and with this video, dis gonbe a piece of cake
0:36 train wheels also have a flange
There is a flange on the inside and outside of the axle. So you should add flanges to test it also.
They've been "tested" since the seventeenth century, I'm pretty sure we understand how they work at this point. 😝
...so we can see whatever disadvantage compared to the cone wheels which seem not to be so genius after considering the wobbling (show the real wheels and compare the wear of different kinds).
But ya, really cool concept that I've never thought of. 😀
@@fireofenergy , after reading that reply it's fairly obvious that thought isn't exactly your forte.
@@outdoorsman7324
Train wheels never looked like cones, so, no, not my forte (always thought they had flange). Bet you never knew what exact shape they are, either, so, not your forte, either 🤣
@@fireofenergy , not my forte but they're visibly not flat.
It's not like I haven't seen thousands of them growing up in coal country.
They do have a flange... did you bother watching and listening to the video prior to responding?
I made my own track and 3 different wheel designs. It does not work like yours. It simply turns 90 degrees and fails. With the track, i originally had square rails but noticed yours are fillet/chamfered so I reprinted a track with a slight fillet to it; i though this would change things, it did not. What's the secret sauce?? what is the width of the track ? what angle is the wheels?
0:44 the example is obviously exaggerated but trains do oscillate IRL which can lead to the flange riding up the rail and derailing
this rarely happens though since the train's weight is enough to push the wheel back down
Ok, so how does it work when you print proportionally right train wheels? Because the wheels irl don’t look cone-y enough.
Cones will quickly acquire wear grooves under high load due to small contact area.
This will lead to yaw oscillation or hunting.
Feynman. You got that from Feynman. 😉
This is an iron off-road) So many bends may only be needed in a certain place and for a special task.
Where do i find this print
I'd like to know how the train/compartments are going to be (if not tipped over) on that "awesome" wheels moving in such terrains.
The taper of the wheel is not liner but based on a 32 foot circular.
Is it possible that the train can drop down turning right?
Can we just mention the issue of hunting? Lets take the DLR for example, it has very tight bends so the wheels are more slanted than on most trains. This has the unfortunate effect of causing the trains to rock from side to side on straight portions of track.
people would be getting sea sick on the train, clean up in isle 1 lol🤣🤣
A twin axle railway bogie pivots to provide a smooth corner.
Don't see a lot of single axle trains 😅
is micro center near madrid?
Are STL available?
Nice
Cool.
Thank you Japan!
"Don't reinvent the wheels."
Train :
And I thought the train use a rubber tire 😌
What about high speed train wheels..is there coning?
Does the train turn sideways into the curve preventing it from falling over as well or is that canceled out by the axels?
The tilt of the wheels on actual trains is much smaller than this, and there is suspension on the wheel carriers to dampen the forces out. Usually the tracks themselves may be slightly tilted if it is for high speeds, or if your really funny you design one of those self tilting trains like the British did
@@Yeeter_InboundIt's probably so they don't spill their tea! 🤣
@@daftpanda6533and it works! ☕
Train axles are on trucks that pivot in curves
But aren't there usually 2 axles on a pivoting platform anyway?
Yes, that doesn't mean the wheels don't have a taper, because they do.
You should try with reverse cone shaped wheels!
A video by Numberphile shows off the same principle and demonstrates what happens if you reverse the cones. The same effect happens if there's just even a small amount of offset, except instead of correcting itself, the entire thing veers even more offset and completely turns off course
would be an automatic derailing train
How's the gauge of that track? Cone train.. yes
That was interesting. Thank you. Ignore the rude comments.
The italian pentolino train buggy as been the reason why trains can go at high speed
Are there any records on who has the original patent on this or who came up with the idea?
www.datamp.org/patents/displayPatent.php?pn=X5636&id=38600
@@3DPrinterAcademy That's amazing!! 😲
@@3DPrinterAcademy thanks so much, can't believe you actually produced that document! Ever since I've seen the Feynman video about how this works, I've wondered who invented it.
@@3DPrinterAcademy czcams.com/video/y7h4OtFDnYE/video.htmlsi=D3ROGiO4hw-ByU1q
Can I get the 3d model for this? :D
What about the pivot points to mount wheels on train? That would take reengineering as well...
No? And what do you mean re-engineering? This stiff is hundreds of years old, its been engineered. This video just explains part of what's happening when the train moves.
Like a differential gear train.
Bro is recording with an actual train noise in the background
I have spent a lot of time around trains....never have i seen wheels of this type.
0:14 those cylindric wheels should have different shapes because in reality they have 1 in somewhat of cone or let's just say semi conical shape
My duplo train doesn't have this and it runs fine on the duplo tracks
Not new cvt using this to squezze the cvt belt 2 cone each side
That must be why so many train derailments happen. There are probably companies that are too cheap to replace these when they wear out and lose their shape.
Don't know what your doing in the US but train wheels in the uk and Europe are quite literally steel discs with a flange. Trains don't and can't negotiate corners or big curves, much like any American cat!
Can you share the stl file
What will the outward pressure of the cone shape wheels do to the tracks?
That's what I was looking for in the comments section. I would thing the tracks would start to separate over time or bend at an angle.
@@informer3evans797 exactly my thoughts.Track system would definitely need some beefing up.
There's a reason why train tracks themselves aren't flat either, they're designed with a small curve as well
Can you make a model with an actual train model on it? There seems to be an issue with the train rising and falling with every turn. I'm not disparaging the idea, but you would most likely need some sort of powerful suspension or shock absorbing system to keep the turn steady.
Moreover wouldn't this conical design slow push the train tracks apart?
You do realise this is the design of train wheels on the world, right?
The angle on actual trail wheels is nowhere near as dramatic as it is on these, so they don't tilt very much at all. Also, they do have flanges that keep them from moving very much side to side. They also are mounted in a way that permits them to swivel left and right with the curve of the track. So this whole video is really only talking about a one part of how train wheels work.
Ahh yes the old Continuous Variable Diameter wheels of the 1800s . We useto call them CVDs
Actual train wheels have a combination of angled wheels with flanges.
A reason is that the cones are really heavy if we would use then since the best way to keep them round would making them either fully solid or make it from really thick steel.
And modern train wheels are also much more stable wich decreases wear and ads passenger comfort and faster travel.
Just because they exist do not mean they are genius or perfect
Vidoes like this make me amazed an awe of mankinds acheievements, trains, planes, cars. Amazing! But we draw all our inspiration from God, thr ultimate Inventor!
I noticed rhis model has a whole lot of wobble as it moved on rhe track
Put a fully load loaded train car on train wheels like that and you’ll see the train derail faster than ever before
I never saw a train with wheels like that.
Sto file?
Реборды на колёсах? Не, не слышал...
What’s with all the ‘geniuses’ in the comments who think they’re train wheel experts? This is a great example of the how the geometry of a train wheel allows it to navigate curves. It’s 3 minute CZcams video, not a university course.
This doesn't really explain what's happening. The "larger" wheel on the outside of the turn has to spin faster, so it "overtakes" the inside wheel, which results in the axel turning.
Great one❤
Exactly dor the same rwasons, motorcycle tyres are round, not flat like car ones.
You forgot to mention that the wheel on the 'larger' side turns slower due to its increased diameter contact with the rail effectively causing a slight braking effect increasing stability through turns - albeit minor...
Ah my mistake, I forgot the tracks outer radius increasing track length......
Train wheels are naturally CVT? Wow
cool right?!
Говорят, что в поездах конические колеса, но я ни разу этого не видел.
two axes need to be made
Прекрасное видео 👍💖
Если в реале так сделать, стачиваемость колёс поезда будет неравномерная и как итог авария, гений