Animation - Leonardo Da Vinci Mechanism
ฝัง
- เผยแพร่เมื่อ 3 ก.พ. 2013
- This Device For Grinding Concave Mirrors by Leonardo da Vinci used for example to weld sections of
enormous copper sphere of the dome, the cathedral Santa Maria Del Fiore in Firenze, Italy.
The aim of this animation movie was to understand how this machine designed to work, and bring it to life.
Credits for the music:
Mike Oldfield - Oceania
Infected Mushroom - Shakawkaw
Pipeline - the alan parsons project
Blackmore's Night - Fayre Thee Well - วิทยาศาสตร์และเทคโนโลยี
![CAMPปลิ้น | EP.76[1/2] โจโฉเปิดป่าโหดรับโอ๊ต-ป๊อบ รอบนี้พี่เอาจริง!](http://i.ytimg.com/vi/pNg5O7Pf-a0/mqdefault.jpg)
There is one thing missing from this animation: A mechanism to raise the turntable as material is ground away by the disc.
Leonardo Da Caprio confirmed for ding dong :O
I was looking to see if anyone noticed that too. Also it appears the vertical gear between the two horizontal gears is redundant. Rather you could have both horizontal gears spin as a single unit which would reduce part count and inefficient power transfer
@Green Lizard right, it's just that spinning the opposite direction isn't needed as it will make a rounded mirror either way.
@noxxi knox lol, i get your point though. I thought about how supporting a long gear like that may not have been as simple but i am thinking not. He didn't have all of the design that we have now to go off of though. If you think this stuff is interesting, then you should check out the game "Besiege." I have a few videos of some of my creations.
@@james_bond1869 maybe it depends on the rotational direction of the mirror that there is this vertical gear involved. it inverts the rotation direction...
Interesting but very slow, I almost fell asleep watching it. Da Vinci was certainly a genius hundreds of years ahead of his time.
Slow is better if you want to see the connection points and direction of each part...
@juggliar Agreed
Bruce Roger Morgan maybe he invented it as a cure for insomnia?
Well, the Romans had used steam, to power machines.
The world had to wait 2000 years to reinvent it.
In India, they were thinking about Atoms, way back....
Just think, how many inventions lost due to time.
Worlds first cars, were actually electric cars.
History repeats itself
:)
@@sgtben88hun17 Worlds first cars were not electric. England was building steam busses in the 1800's, Karl Benz built one of the first petrol powered cars at the end of the 19th. century. USA, Europe and Britain were building petrol cars at the end of the 19th. century and the first few years of the 20th. century, all before the first electric cars were made.
didn't expect to hear infected mushroom here
I love infected mushroom. What you're favorite album?
Shpongled
The animation was drawn out so much more than it needed to, do we really need to see every peg go into every hole 1 by 1
yes
And also.......yes.
Geez whats your guys problem?
You are witnessing the work of a master artist who devoted millions of hours of his life to creating amazing peices of work... that are now recreated and rendered digitally, turned into full assembly instructions, animated to show functionality and delivered to you via TH-cam for free... honestly one of the coolest things you could ever watch... yet you still have the audacity to complain about the lengthieness of a 4 and a half minute long video.
How absolutely pathetic...
@Repomeister ok.
@@quantumleap4023 da vinci only lived for 600,000 hours or so. He didn't spend millions of hours on any thing....idiot.
I liked this animation. Easy to see and understand.
Well done, sir. Well done.
The glass is placed on the table wheel and the gap between that table and the crank wheel and its radius determines the size and pitch of the convexiture. Great animation!
One has to provide for height adjustment of the mirror as the grinding process makes it more concave...
Exactly! I noticed the same thing.
And how to compensate for the grinding wheel losing material?...That reduces the radius of the wheel, changing the focal length of the ground mirrors.
Or do we get a new grinding wheel for each mirror?
Can't just move the bits closer together, the radius of each mirror is gonna be a bit different from any other.
I doubt the grinding wheel was diamond coated steel...
@@pirobot668beta The grindstone was probably a lot harder than glass. Wear, however minor is inevitable.
Greg Gallacci indeed, using the 'dry' stone method what you say it's inevitable: with this method you produce curved mirrors (not perfectly spherical) but this as with everything is a question of approximation. I'd say that for the applications and the technology of the XV century, it would have been enough. Besides wear off of the average surface, this method would have give a rather coarse ground mirror tho.
On the other side, wetting the stone with a slurry in which you disperse ground quartz-based stone fragments that will do the grinding reduces wear and will produce a better result. Also, progressively reducing particle sizes will also decrease surface roughness down to the desired optical quality. These are advances made mostly in the XVII-XVIII centuries tho. similar techniques are used today in optics grinding and polishing
@@saa82vik XVII - XVIII centuries? What a fucking tool, the rest of the civilised world would call them the 17th and 18th centuries
Concave mirrors were in desperately short supply at the time and they were looking for a way to ramp up production.
You are awesome man you made this before 7 years
Respect
I see we didn't get all the way to grinding mirrors, but Vinci was beyond brilliant, and the computer graphics are astounding. Well done.
Great job! I think there must be more to it as the distance between the grinding wheel and the target look set and would need the ability to drop or raise the target but gets the concept across nicely, well done
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📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)[4] 📚
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🔵 Rather it’s going back to the original teachings of Jesus and obeying him.
@@1islam1 wtf this is NOT the group for the anonymous muslims
@@1islam1 while I believe in education, thus is a pretty odd place to put your message
@@1islam1 I hope you're saying this to all the islamists that believe in "convert by the sword" and other forms of submission to the Caliphate. To my eyes, Muhammed was a crazy pedophile, and islam is about submission to islam - by any and all means necessary. Much improvement needed in your religion of "peace".
So well done and very instructive.
amazing animation. really shows how things worked
*Your work is outstanding, impeccable. Love it when you use another Gressel vice to fix the other*
Where's the part where rhe glass is put in and ground?
The glass is on the bottom bro
At 1:22
@@derrickshepherd3472 seeing as its the same color as the grindstone, I don't think thats the glass. Why wouldn't it be clearer?
@@theludonarrian glass is transparent you are seeing the grindstone through the glass
Omg I'm such a fan of his work, wish I could get an autograph!
Congrulations! It was very good animation. I am wondering, With which book I can learn best about Da Vinci for himself and its inventions?
Thank you, there's so many, i don't remember from which book i learned about this machine
If Da Vinci was so smart, then why didn't he just buy concave mirrors at the concave mirror store?
from above Cause the store only sold flat mirrors, he had to make his own concave mirrors
He was a cheap ass
Because they're cheaper on-line?
@@karldavis7392 The USPS doesn't exist in French, I reckon he had to use the FSPS or something to deliver it to his house
I fell asleep last night watching this. Lol.
*_Daa'VinKi?_*
the man who painted the mona lisa
Yes! I have found it!
@@tindurleskin5851
*_!Congratulations!_*
@Loona The Hellhound
Da who?
Infected Mushroom... nice music choice ..class
I guess Da Vinci was some kind of a mechanical genius. I read in a 1961 US Air Force text book for English Comp classes that Da Vincci was a very strong man. Said he could bend horse shoes out of shape with his bare hands. Sure wouldn't want him to ask me to step out outside into some back alley with him for pissing him off.
Anyhow, I really dig that "Assembly" music. All electric man:). Actually the animation is quite nice, goes swell with the music. How'd you do all that man???
He is a very intelligent man too... did he use his hands, or some lever mechanism?
very good animation
Infected mushroom. Nice.
There’s an issue.. the wheel could not rest on the glass surface, and as is would run its elf out of material almost immediately. Can’t imagine DaVinci missed that.. there must be some other mechanism
Da Vinci didn't try a lot of its inventions, and a lot of them have such flaws.
@@alexp6013 the second cyllindrical gear is very long to accommodate a piece of glass, then over time as the glass is ground, the platform is raised to slowly remove more material. It didn't show it here, but the edge of the grinding wheel would have to be rounded in order to get a nice concave surface.
Amazing work, may I know what is the tool used.
Thanks it is made using Microstation
Screwdriver
Thank you!
so something with medieval plans was the engineer would leave things out. the plans would be given to worker then the craftsman would finish the parts that made it work well. this device is grinding mirrors, it could be also used as millstone that rotates as it spins. however to make it grind a convex thing you need some way to move the bottom gear up. this could be done by making a separation of the two gears then putting something on top of the lower gear that pushes the work piece up or by making something to rise the lower gear such as gear cage that tilted at 45 degrees and can pushed towards the lower gear's center. the wooden materials might require more then one of these slanted cages but that would give finer control. or you could use sand in a that you pore below the axis of the lower gear, the sand would be contained in a pipe that also keeps the axis straight. this would give fine control and support the heavy lower millstone. but your lower gear axis would need to be replaced and lower pipe as it is eaten away.
Just raise it slowly with a lever.
Very interesting 👍
Even at x2 playback speed, it is slow.....
No, your attention span has dropped significantly due to the constant overstimulation from the internet.
@@raycarden7941 Is it ?. Very interesting .
parabens por postar coisa util que agrega na vida dos jovens. grato
Nice& cool
Cool
Great job and good value for money
This can be done to generate electro static?
actually there is no need for the side cog,
only a longer cog is needed for perpendicular change of rotatory motion.
It works as the gear.
@@AnshuSingh-rh2vz but perhaps works it more like an idler pully/stabilizer...if the rpm speed were to be greater
Let's suppose Leonardo wanted to feel himself secure while making this.
I liked the animation, how did you make it, in learning to make such animations starting with simple ones, so which softwares did you use?
It's solidworks
Love that Mike Oldfield song
Why did he have the two 'squirrel cage' gears? why not just a single tall one? Was the direction reversal of having two important in some way?
Very Good!!!
Is the focal length of the mirror equivalent to the radius of the grinder?
I beleive so, since only rays through the center of the grindwheel produce an image when reflected by the mirror. Not sure how useful this is, since those rays then leave the mirror along the same path they hit it, producing no useful magnification. Perhaps for increasing the effective light of candles without changing their spread?
That what it's called for a spherical mirror (which is what this produces). But it's not the focal point. A mirror that focuses to a point - like that used in a telescope - has a parabolic shape, not a spherical shape.
Hola, muy buen trabajo, con que software realizaste el diseño y animacion?
Huge thanks to youtube dev for made those "Playback speed"
What I'm interested is what the process was to grind the mirrors into a concave shape. Never showed that.
spherical
2nd roter will get blocked. 1st and 3rd will work fine.
One has to redesign the project.
What r u talking about, if all the rotors r independent it works fine
Davinchi worked designs that did not work unless you knew what the flaw in the blueprints worked, he did this because patents were not a thing then.
@@judebarrett17 that kinda makes sense, though some like the "helicopter" were probably mere illustrations/concepts?
@@revimfadli4666 Yes. But I think that if you invert the helicoidal thing and put it inside a funnel you now have a powerful air injector for forges.
Sorry, can you explain what that mechanism for? Is it the first gear mechanism idea?
Yes exactly looks like it doesnt do anything
It says in the title that it is for grinding mirrors.
This would produce a spherical concave mirror. I was wondering if, by simply tilting the grinding wheel, the result would be parabolic.
It would be elliptic, close but not quite a parabola
@@spacenoodles5570 I wouldn't be elliptic. The outer edge would steepen as you tilt and a protrusion would form in the middle.
That's clever. The question is what is more similar to a parabola (at least that small portion used as mirror), a segment of an ellipse or of a circle.
@@vikapm A sphere is technically an ellipsoid. If you Imagine a sphere and stretch it it becomes more recognisable as one and at the same time you realise that you now have a problem because you stretched the focal point as well.
If you want to mimic a parabolic mirror use the spherical one and get the biggest possible focal distance. At infinity you will approch a parabolic mirror.
@@vikapm an ellipse is closer, since a parabola is an infinitely stretched ellipse, and an ellipse is a stretched circle
Why the reversing gear drive to the mirror? It would work just as well without this complication.
My thoughts exactly.
I think Leonardo was my favorite scientist.
Just a simple reversing gear. How do you get smooth concave movement?????????????????????????????????????
It's part of the algorithm, I programmed it to ecalarat and decelerate, its nice that you noticed :)
Bello
Amd what was it for???
Should be taught in all the schools and to an every student.
좋은정보 감사합니다
Tiktok guy: "Davingci?!"
funny
@Dr.Cemong most of it
Whats the purpose of the lower vertical gear? Wouldn't it be simpler to just have one longer one going from top to bottom? It seems all it does is reverse the direction of the bottom plate.
I understand that the large grinding wheel approximates a parabolic curve on a small lens. There is nothing in da Vinci's drawing to describe how the grinder is lowered (or the lens platform raised) as the lens is ground? I would think it would be easier to raise the lens platform on its axis rather than lower the grinding wheel like I read some where else. The large gear on the right is not depicted in his drawing.
Please name the animation program
Can't help but get mad at the misaligned pins at 1:42 .
Haha, nice choice of music. Shakawkaw by IM😎👌😁
*Show! Mas pra que serve essa "engenhoca"?*
good
Что ни говори а это был ГЕНИЙ всех времён и народов.
uhh.. blyat?
What software you use to design thies??
Tutto molto bello... Ma quale dovrebbe essere l'uso finale?
To be sure of hitting the target, shoot first, and call whatever you hit the target
What is the purpose?
Problem is, this mechanism creates a spherical mirror, which has spherical aberrations. This is why early telescopes made use of lenses, instead of mirrors. They did not care to pay the expense of the necessary corrective lenses on top of the cost of the mirrors. These days, we know how to make corrective lenses cheaply, but it's a lot easier to do it in software.
Good way to make a spherical mirror.
А зачем сие устройство?
How the grinding done...?
the large vertical wheel is a grindstone, and the mirror is mounted on the lower rotor
1. Why was this invented many hundred years after the gear weel?
2. Why do you shift the energy so often if you could just connect the first and the last weel (for opposite turning a third inbetween) instead of using 5?
3. What do you need it for? (It alone, I understand you would build it into machines but I guess it's not an extraordaniry invention since everyone would have that idea)
Which software is this??
I’m sure leonardo would never have been able to think of this with such awful background music going on.
Thank you. I just can't figure out what music has to do with these types of videos.
I was about to say, “hey, It isn’t that bad” then it kicked in
But he might have thought to turn the sound off, like I did.
:)
@@drumrollplease631 yeop me too, listening twice hits different
Point of contact would be relatively small, in this size of stone, grinding that size mirror would take a much larger stone wheel.
What's the name of the software which you used to create this mechanism?
Microstation
Could not figure out what this contraction was for. What is it used for?
I still did not understand. Someone please enlighten me, what this device does
Usually used for rocket fuel on board ISS but in this case it was used for the storage of rat/rodent death by beheadings.
Used to make a mirror for a telescope, most likely.
@@NCF8710 wrong
А на чем вращается нижнее горизонтальное колесо ?
In minute 2 to 3 that is really the music of Alan Parsons Project.
Had one of his tapes when I was a kid and remember loving it; only had a few tapes. LOL
@@MichelJosephCardin He's awesome. You can listen to most of his stuff free right here on YT. He's undoubtedly one of the musical geniuses that many people only barely know.
@@johnpossum556 I did re-visit and didn't like it anymore but will try again right now
I have seen many videos on DaVinci inventions and I find that most don't know completely how the invention works and mistakenly leave out parts or have the wrong movement.
Sometimes I believe DaVinci could possibly be doing it on purpose to confuse the people, a form medieval patent you could say.
that might be true.
but do you see anything in this machine that would classify in such a way? (something that needs to be added or changed to make the machine really work with success - in contrast to the original drawings.)
@@alexanderstohr4198 Making the central axle of the gears not directly connected to each other.
@@sirnikkel6746 What if...
the handle of the crank was never meant by DaVinci to be on the grinding stone axis?!?
A very fine location for a turning handle would be the very far aside gear that grips into the two vertical cylindrical gears.
Why? Because a permanent hard push and pull on the grinding stone axis would bring it out of balance and thus reduce the achievable quality of the grinding quite noticeably. when putting the "rough" force to the outer gear it would be much lesser in its damaging impact.
other than that - with the two sided force on those the "reversal" gear balance of masses is also much better.
What is the application of this mechanism. ...????
Please reply. ....!!!
grinding glass or other items to concave shapes - for examples for lenses used in a telescope.
what software did you use to build this animation?
Interesting, but not THAT clever since there is an inefficiency. The upper gear (of the 2 vertical and aligned ones) could be connected to the upper part of the top wheel. That will avoid using the last gear that was included (not appearing at 2:17, but magically placed at 2:50).
Nice thought, but then you would apply a lot of force to a wood shaft
@@Daniel-ws9qu Yes, you're right. But making it stronger is easier and cheaper than building the other stuff.
Wouldn't it work fine with just the two wheels?
1:45 the pins aren't in circle. They dont fit the holes
Реально автор провтыкал правильно связи указать ))
whete did youngte yhat frm
where did you get that from?
@@0yah0yah06 get what? you really don't see it? :D
yeah, looks like a problem in the animation, two of them are offset
Wow I can't believe DiCaprio got those pieces to fly around assemble themselves, all in the 15th century!
Rotating a disk laying flat atop another will make one concave and the other convex.
That is an elegant solution. However the wear rate producing the abrasion would vary with the speed of the radial point, which would be a linear relationship. It seems this would produce a spherical section, rather than a parabolic one. Also the disks would have to be separated periodically to remove the detritus of the abrasive process, the accumulation of which would act to deform uniform wear and thus affect the shapes of both the worked and working disks.
What is the purpose of this mechanism?
I don't understand how it works... It's confusing how the large wheel and plate on the bottom are interacting. Still very interesting; I thought it was cool how the pegs functioned as rudimentary gears.
Satisfying tho
Very nice, but why does it reverse direction on the shaft downwards? It just seems like a useless loss of energy.
What is it used for
this guy was awesome in the revenent!
What is its usage?
Зачем ему этот механизм был нужен и что он делал с его помощью?
Я считаю что шлифует нижний диск до вогнутой формы. Перевод с английского: вогнутый зеркальный шлифовальный станок.
Написано для изготовления каллиматорной линзы для лазерной сварки медного купола собора Санта Моники
@@user-dd5ou5um6l спасибо! Хорошо, но как будет углубляться диск?
Why does the mechanism need the reverse drive part, surely it would work with the disc turning either way?
Sure, it helps to turn the lower platter in opposition to the direction of the grinding wheel, but if true, you would need that complicated 3-gear "reverser" gizmo. Just lift the take-off gear to the TOP of the grinding wheel!
Of course, in this animation, it doesn't make sense either way. All this thing might do is put a 1/4-inch dimple in the middle of the surface. Makes no sense.
@@HogTieChamp
I don't see it, the relative motion between the Grinding Disc and the Lens is identical in either direction, as there's contact on both sides of the Axis (of the Lens).
The Lens would obviously be on a moveable mechanism, to raise it as required, this is just a basic representation of the machine to show the idea.
Where this mechanism can use
See an answer in the comments
It's used for grinding mirrors but I believe it's not properly drawn.
Lital baruch, very poor quality answer you provided, actually it's the definition of a non-answer!
Is this the way you usually help people? Too bad!
@@iulianzagan779 Totally agree! He made animation, then took his time to answer, but give a lousy one.
no adjustment for the mirror to move across the plane of the grinding wheel the mirror is a parabola deeper in the middle less on the edge i have ground my own 12" mirror
this was only intended for sperical section mirrors
Who said it was a parabola?