How Does an Escapement Actually Keep Time?

How do we go from escapement to clock?
•••
First steps are to get the gear ratios figured out. The pendulum swings back and forth every second (1 second period). Since the escapement wheel has 30 teeth, this means is makes 2 full revolutions every minute. To get our seconds hand, we need a gear ratio of 2:1- the seconds hand rotates once for every 2 rotations of the escapement wheel, or once per minute. To get the minute hand, we need to add gears to get a ratio of 60:1. This means the seconds hand needs to turn 60 times for every full rotation of the minutes hand- this counts one hour.
•••
#clockology #watchmaker #horology #geartalk #mechanicaldesign #mechanicalengineering #mechanicalengineer #3dprinting #3dprintedmodels #3dprintedclock #watchaddict

[@Engineezy]

The clock files are officially available! jbvcreative.com/products/the-3d-printed-wall-clock

[@teeperrhyma7348]

Got my pre-order in!!❤️

[@doraetang5363]

What software you download?

[@teeperrhyma7348]

@@doraetang5363 you asking me or JBV?

[@ZweiForgot]

how is it even possible to pre-order a file.. you already have the file, there's no need to wait

[@suborgulag7289]

@@ZweiForgot I guess he wants a way to monetise it since if the files were already purchaseable, someone could buy it just once and then share it But it still sounds pretty dumb

[@SayonR]

Apart from the escapement itself, I love the blue bg as well lol

[@Engineezy]

Haha me too!

[@imperfect9093]

Yeah, the color's so nice

[@imperfect9093]

But why tf did I read it as "bug". 😂

[@wipoute]

​@@imperfect9093 cuz you're not perfect

[@DanielTseng100]

​@@imperfect9093 I read it as log 💀. Glad to see I'm not the only confused here

[@cobalt4263]

This man is gonna go insane if he finds out about clocks

[@Karak-_-]

Of course the guy knows about clocks, he just explained how pendlum clock work.

[@nubahnubah4784]

@@Karak-_- whoooosh

[@Davide0033]

yeah, also did it when i stopped counting the seconds

[@aoyuki1409]

But this is a clock. In fact big ben uses the exact same mechanism except the weight is pulled up with an electric motor nowadays

[@EEEEEEEE]

E‎

[@andrewcherego9850]

This was our freshman year engineering project. Some groups could keep near perfect time, other group’s escapements could run for minutes, but nobody achieved both 😂. Well done.

[@grigoryevstepan]

I don’t quite get how do you make a pendulum oscillate every second. Shouldn’t it be damped eventually?

[@percaros]

@@grigoryevstepan the wheel also gives it momentum

[@MuDasirYasen]

​@@grigoryevstepan it's the weight on the spool that powers the pendulum, substituting the energy it looses to friction and keeping the clock ticking.

[@zhubwat]

@@MuDasirYasen Good catch, and good explanation!!

[@thehacker4771]

Mechanical engineering??!

[@jjxthexking]

Now only if you can figure out a way to make this small enough for people to carry around on them. you'll be rich

[@betochiwas]

On that subject I recommend the video "Hamilton how a watch works" it explain the same principle but powered by a spring that is how a mechanical watch works

[@deusvult6920]

​@@betochiwas most mechanical clocks are powered by springs as well. Weights are relatively uncommon in all but large clocks.

[@le9038]

are you talking about a pocket watch?

[@trickytreyperfected1482]

​@@le9038 A what? All I know about is the sundials that go on your belt. It's "a waist of time" I think.

[@TCG9777]

You mean wear a watch, right?

[@Spectikill]

bros geared up [i am very sorry i had to make the pun]

[@Engineezy]

😂😂 necessary

[@DlMENTlA]

It was high TIME someone did, just WATCH yourself- someone may try to CLOCK you 😉

[@lucassmith3106]

Time to use the GLOCK

[@LuciferAmoyai]

🗿

[@is_not_me]

@@lucassmith3106 💀💀💀💀

[@walshar2705]

"Yo what time is it?" "It's 1 revolution" "Okay"

[@petersimon1551]

So the pendulum serves as a brake, a kind of sequencer that limits gravity's pull on the weight.Did I get that right?

[@Engineezy]

Exactly right!

[@fatitankeris6327]

It makes the timing consistent.

[@petersimon1551]

@@fatitankeris6327 repetitious

[@johnsonfromml8662]

i thought it powers the clock, now i know

[@AMD7027]

@@Engineezy left out it’s a deadbeat escapement

[@intothemindofaidan]

woah I never understood clocks at all but once you put it into words and explained how it’s all gear ratios it makes so much sense. Clocks are basically basic math applied in genius ways

[@arcticwulf5796]

Yup. If you take it to the next level - > Quartz watches have a quartz (type of rock) rod that if electrified starts to vibrate at a certain rate like tuning fork. Then you use some other parts to calculate and cut down the vibrations down to 1 vibration (Hz) per second and you get an accurate watch.

[@teeperrhyma7348]

This is...idk...I don't even have words. Once it's done imma need to know where I can buy and download the files! You inspire me dude, I haven't really done any 3d printing stuff for a little while and your videos make me wanna go n make some stuff!!!

[@Engineezy]

Wow, thank you! Hopefully gonna be done by the end of this week if all goes well :)

[@fatitankeris6327]

Imagine doing this by hand in 18th century.

[@mcw0530]

Now I would pay some $$ for a 24-hour version.

[@mooli1919]

I think it's already there it's called an analog clock

[@TUDORMARCU16]

Since the hour wheel is not there yet, all you need is a 24:1 gear ratio to make a 24 hour version.

[@elitethehawkk1816]

You've officially made a grandfather clock

[@TheBrainDunne]

Yes, and not a great one.

[@oxnerd]

It’s cool to see Jerry Seinfeld get into mechanical science

[@proreactstoair8398]

Bros making so many steam punk fans go crazy

[@nobody1157]

Steam punk fans when they find out about grandfather clocks 💀

[@nicknick_nick]

​@@nobody1157Its still cool to see the inner workings not everyone is gonna have a grandfather clock to take apart

[@Omura6083]

as a steampunk fan, yes

[@tylerhatfield3892]

love it dude! clocks are awesome!

[@Engineezy]

I have to agree!

[@idahovanhemel404]

I've actually SEEN one before! 👏 (YOU DON'T KNOW ME!!!, YOU DON'T KNOW ME!!!, YOU DON'T KNOW ME!!!)

[@claudiaarjangi4914]

freaking awesome seeing people like you make things that show younger peeps where their modern stuff first came from.. So beginnings are not forgotten 😁☮️

[@zstewart]

I would try using an intermittent mechanism between the second hand and the minute hand (only pushing the minute hand once per minute). That way the clock can be set by just manually pushing the minute hand, even with the pendulum running. That would requires a separate gear train for the weight of course. I'm not sure how you set the time on a normal grandfather clock.

[@Engineezy]

Interesting thought! I do have something unique planned for the minute hand though! Stay tuned

[@filippopaganini6915]

In the grandfather clock the minute hand and the hour hand are on what is called "motion work". Which is separate from the going train from weight to the escapement wheel. The motion work is clutched to the going train with a spring loaded plate. When you set the time moving the minute wheel you overcome the clutch and put the motion work in motion. Once you stop the movement the clutch re-engage and the clock will continue to work.

[@vulcanstarlight]

This is wonderful and so practical! And not to mention also a lovely mathematical adventure, which is something I totally love. 🙌

[@ms-iz9ye]

It’s wonderful yes.. practical.. no way lol it’s assembly alone has to be done correctly or it’s all off.. we’ve moved on and there are other ways of telling time that aren’t as flat as as hand drawn arrows on spinning parts to tell time.

[@honkhonk8009]

Yo this actually such a good explanation on how clocks work. Never realized that.

[@johnnybraut]

That was the best explanation of a clock I have ever seen. This should be shown in every school. Well done!

[@lazytive1771]

"Sir, we ran out of small weights" "Just paint the big one white they won't notice"

[@senainvanapeldoorn8484]

This is amazing, it makes me wonder if you're reverse engineering a clock, it's hella interesting imo

[@Ermei2013]

Because of this video I understood how a clock like this works. It was a big miracle for me before. Thank you

[@darrenstettner5381]

This is incredible! I’ve always marveled at the complexity of clocks. Now that you explain it in that short video, it’s actually pretty simple to understand.

[@Engineezy]

Right?! I didn’t understand it either until I tried to make one- not so bad eh

[@teorossi1149]

my progect is: a single clock that handle the perpetual calendar

[@kuratse205]

hahahahaHAHAHAHAHA Good luck lmao. That is an absolutely futile endevour (if you care about actually having a clock that properly tells the exact time without going out of sync).

[@stevebabiak6997]

There are things called “leap seconds” that get added occasionally - not exactly predictable. So due to leap seconds your planned endeavor is essentially impossible.

[@darshanfishe]

I forgot that clocks are pretty simple when it comes down to the mechanics, it’s making them small that’s hard

[@JayHeartwing]

Still amazed me on how these gears actually match clocks accurately with just relying on gear ratios. I was like how?

[@MamaWheelz]

This has become a valuable teaching tool for teaching my kiddo another way clocks can work! Thank you for breaking it all down! :D

[@gametabulas]

My father was a mechanical engineer and he use to tell me all about how gears work in IC engine powered cars, I always wonder how smart he was. RIP to him, he was the reason I picked up engineering in college.

[@flowerman4861]

Dawg I don’t wanna do calculus to see what time it is

[@tonyhakston536]

This is arithmetic.

[@boonjabby]

JBV - simplifying detailed things

[@Among-Us.]

You just explained gear system my friend, good job

[@DraftyDuchess]

Hurray for deadbeat escapement!

[@Engineezy]

Yes!! Another escapement on the roster!

[@soulsteelere2064]

The waffle house has found its new host

[@mr.bark6707]

The Waffle House has found its new host

[@stoloran]

the waffle house has found its new host

[@ytuser4562]

Winding a clock using gravitational potential energy is genius and I love it.

[@SWAMPTTHING]

Thanks man, I restored an old french clockworks and I needed some guidance on getting my head around getting all of the gears synchronized

[@Engineezy]

Nice! Glad I was able to help

[@SWAMPTTHING]

Some of the gears had scratch marks that I suspect someone in the last 100 years had used to time it. They were useless if you don’t know which gear to start with. Now what I can do is try to count teeth and see what gears parallel your example.

[@vachila643]

The waffle House has found it's new host

[@mr.bark6707]

The Waffle House has found its new host

[@mr.bark6707]

The Waffle House has found its new host

[@Ing_Failure]

Finnally someone explains gears clearly, thanks

[@vaguediscomfort5720]

Kind of wild that our tech has become so advanced that relearning the old methods becomes fascinating

[@king79838]

I like when vids like this give you ideas for new inventions using the simplest equipment or the idea of gravity, in use for something

[@lotgc]

Wow, this looks really simple. I could probably make one that works decently well if I was bored lol

[@ilesbird]

I'm dumb as celery but I appreciate the brains and work that go into a time piece like this. I'm glad someone steps up the vegetable chain.

[@Dev1nci]

Those rounded gear spokes are a subtle but reCOGnisable piece of design that is just right 👌

[@gavinnorthants]

Remember a friend had a grandfather clock. It always fascinated me. To last longer the weight was on a pulley. The weight was on a wheel which meant the weight would drop half the amount when the string was pulled through.

[@Maninawig]

At this point, I would look into the history of clock making and springs for more detailed info. But I am recalling a few mechanic principals that might help you out: •there are unidirectional connections that you could attach on top of your time keeping gears to keep the hands always moving forward and being prominently displayed, (right now the second hand hides itself) ••These could also be used to flip the mechanism leading left to display the hours first, or be orientated to work in the counterclockwise position to form a backwards clock. •I am not too understanding of spring clocks, but I do recall a mechanism where you add a 1:1 ratio on the hour clock and tie the weight between them. I forget the exact set-up, but it was something like the weight pulls down on the string, which moves the hour gear, which then moves the extra gear, which then winds up on the string. Then it ends up reversing itself (which is where the unidirectional connectors come in) Either way, it's looking good.

[@mannymakesmusic891]

Gotta add arms and more gears to get the clock running for months

[@bluecat2991]

Powering the minutes hand rather than the escapement wheel was actually brilliant. Though I would recommend using the thinnest string you can to support the weight. This will give you a much longer runtime without winding.

[@3sotErik]

It's so incredible watching somebody reinvent the wheel.. er or clock Love it!

[@Engineezy]

haha I can't take credit for a reinvention- just an interpretation! Thank you :)

[@moorbene5104]

Relatively simple yet pretty amazing. Thanks for creating such good content.

[@mr.danbo001]

I just realized this is how clock and watch works, awesome explanation

[@thumper88888]

Yes, I have ti hold my watch up in the reading position si the pendulum can swing

[@perrymalcolm3802]

Brilliantly illustrated!! I’ve been on a watch repair video kick recently. You hv a talent for education as well as mechanics! Rare combo.

[@Mothergoose-BMX]

“You guessed it, 60:1” Me: no I didn’t

[@tigerlily2941]

Back 8n my day we called these grandfather clocks. I hadn't realized such technology is unavailable any more.

[@johnluis1845]

I always wanted to know how clocks with pendulums work, thanks man.

[@user-gd9up1pb5c]

Man I would love this I would be staring at it for hours

[@Pkstp1]

This demonstrates a recoil escapement, most common escapement in wall clocks. It's noticable that the escapement wheel turns back slightly on each turn of the pendulum (hence the name recoil escapement). They developed a graham escapement from this, where the escapement wheel stands still each time pendulum swings all the way to the end. Energy loss is smaller and accuracy better. I'm a watchmaking student and we fixed these types of clocks in the first year. Still amazes me that mechanical clocks date back to the year 990. They've been making mechanical timekeepers over a 1000 years!

[@hornyducks4090]

I actually have never thought of this in my life. Now i need to know more

[@jx5b]

Nice to know that. When i was a kid i always thought about how it works. I knew it would be something about gears but had no idea.

[@michaelbell1155]

I love this so much. Would love like a copper coloured one to fully embrace the exposed gear steampunk style.

[@alphabetagamma4142]

This is the coolest fkn thing I've seen in a while.

[@mallowman2794]

THANK YOU! I finally understand Hugo Cabret

[@JaccobeNA1]

Id love to have this is my Car Sales office at work! Very cool

[@Kupynu]

THAT LOOKS SO COOL

[@the_guy_that_asked]

Bro just reinvented the pendulum clock

[@ColCam]

Super dope man, keep up the good work

[@Engineezy]

Thanks Camden!!

[@hikari1690]

I've always been curious but too lazy to find out. Thank you!

[@noelaruldas1152]

Thank you very much for your demonstration and explanation!

[@abdurrazack7376]

I like it man. I'm a fan of clocks and this looks cool.

[@croez2]

Bro taught us gear ratios better than teachers

[@crc0889]

Wow I want one of these!! It's so simple but ingenious. I would buy one if, as one of the other comments suggested, you could set the time with the hands.

[@Adventist1997]

So literally like a Grandfather clock, but without hands... Pretty cool idea to 3D print your own clock. 👍

[@mubashirali8898]

Best video I've seen, in this year.

[@gerrybaker7055]

Man’s out here reinventing mechanical clocks😂

[@levimelchert876]

That's dope dude. Now I want to print a clock😂

[@iangraham6730]

Great idea! I can't wait to design and print my own! 😀

[@dramklukkel]

Duuuude, you made that look soooo simple.

[@rileyholloway8651]

Honestly, this looks really cool I just subscribed

[@ahauwhauw9774]

It is always a great excitement, to look at the mechanism 🎉

[@sandalbasotra5765]

That was the best video i have seen in a while.

[@JohnnyTyrant]

You could also have a plaque with numbers on it representing hours behind the weight and a line on the weight could point to each number as it descends thus telling you the hour.

[@SandbagsYoutube]

Seems way simpler than I would have imagined, guess I never thought about it

[@Musical_Sweetness]

That was great bro!

[@isaacschmitt4803]

Congratulations, you've invited the grandfather clock.

[@oseiwiafe8832]

I love your work mate

[@chudleyflusher7132]

Sweet! Nicely done.

[@shimo_96]

He left out the most fantastic part. How do you get the pendulum to swing so specifically? Well that takes hours of tedious leveling to make sure it swings in time and doesn't stop. Depending on who you are, this is hell or absolutely fantastic.

[@sydberetta4649]

They really went full Jurassic Park with this one didn't they ?

[@jpol3808]

Excellent video. Your the first person I've ran across who explained how a pendulum clock or father clock worked. Now explain how the weight mechanism worked.... Pull one weight down and the other went up and ran the clock! Cool hey. Maybe a miniature clutch?

[@williamjones7163]

Ok, you caught me. I am a clock nerd. Thanks for the info. It is so timely.

[@cobesclocks1949]

Thank you for teaching other poeple how clocks work I am working on old antique clocks

[@Nonameplz_]

This is really cool thanks for sharing!

[@0snddi]

People coming over for the first time: “What time is it?” *Looks at gears* “It’s noon” (doesn’t know either)

[@Christopher-mj6eo]

Omg! Is this how grandfather clocks work?! That’s so cool! Wanna design your own?

[@ky-effect2717]

Very cool thanks for explaining

[@valiantwarrior4517]

Sweet. Nice conversation piece.

[@foureyedchick]

Wow! It is a ratchet just like a socket wrench! Good video! 👍

[@EthanCrB]

*checks time with this clock* 30 minutes later: Okay got it

[@Ganesh_K4]

I like this open watch mechanism

[@udhi_gn3893]

Hoomans are so imperfect to build and tune it at exactly 1 second, and yet hoomans are perfectionists and built an atomic clock for the sake of ultra perfectionism

[@CasualQuasar]

Yo that's sick as hell I love it