LEGO Escapement Sculpture – The Cow Jumped Over the Moon


Hey everyone, Jason here. Over the last couple of weeks I’ve been experimenting with designing a LEGO escapement mechanism. Now, escapement mechanisms are typically used in mechanical clocks to power the timekeeping device, but I
really want to see what I could do with one to power a LEGO sculpture and in this
case I decided to build the cow jumping over the moon, which is of course from
the traditional English nursery rhyme and in addition to having the cow move
back and forth above the moon I also have it so the eye of the moon is
actually tracking the motion of the cow. So let’s take a look at how this all
works. The first thing I’m going to do is take the moon off the front so we have a clearer view of what’s behind it, and the moon basically just hangs off this axle which is the same axle the pendulum
swings from, and the eye just sits at the end of it like so, and if we start it up you can see how the pendulum swings, and the cow is just attached to the pendulum using one of
these transparent bars and we can see the pendulum goes all the way almost to
the ground. The pendulum is about 80 studs long for this model and you can see in the back the escapement mechanism. So, how does an escapement mechanism work? Here I just have the escapement gear and as you can see there’s a spool attached to the end of it with a string wrapped around it
and at the end of the string is this weight. So if I just hang the weight
gravity will want to pull it down which will of course spin that gear and this is where all the energy of the
escapement mechanism comes from and this is also why in a traditional clock
powered this way you have to reset the weights periodically. Because as the clock operates the weights slowly fall to the ground. So, if we add the pendulum back into the system, drop the weight, and swing the pendulum
you can see that there are these two arms attached to the top of the pendulum
which alternately stop the gear from spinning, and at the same time, because of the weight wanting to spin the gear, every time one of these arms comes out
of the gear, the gear actually pushes the arm a little bit, and that’s actually what
keeps the pendulum swinging. Because if we take the weight off and just swing the pendulum freely, it will slowly lose energy to air resistance and friction and eventually stop. I guess that’s about all there is to it.
If you have any questions feel free to leave a comment. As always, I hope you enjoyed the model
and the video. Thanks for watching, keep on building, and I will see you next time.

100 comments

  • Al

    That moon is creepy :O

    Reply
  • MTGpugs

    How do you do it?

    Reply
  • 04EmilL

    Try to make a grandfather clock! It would look Awesome!!

    Reply
  • Brick Rhodes

    Another amazing build! Love how the eye moves.

    Reply
  • The Ty Guy

    Thanks for showing us how to make a Lego escapement mechanism 🙂👍

    Reply
  • First34

    great tutorial 🙂

    Reply
  • Togira999

    Awesome, i think you could build an amazing scupture with a grasshoper escapement instead of an anchor escapemt, or a grand father clock would look awesome too

    Reply
  • Aidan Reeves

    make a clock!

    Reply
  • biggus sippus

    Moonman Moonman

    Reply
  • ThinkCleverAndSmart

    That moon looks like ( ͡° ͜ʖ ͡°)

    Reply
  • LegoMOCBuilder

    Smart!

    Reply
  • TheRe5gamer

    Moonman moonman can't you see?

    Reply
  • Tanner Compton

    Ingenious as always! I always look forward to your extremely clever models. Did you include a way for the mechanism to be easily wound from the back, or do you have to take off the moon face and wind up the spool?

    Reply
  • Steel Rebel

    Awesome

    Reply
  • pikachu1324

    There's certainly more than meets the eye, when you first look at it.

    Reply
  • xandy -guy

    you should build a lego netons cradle 😀

    Reply
  • Michal Málek

    Maaaan! This is awesome!!!!!

    Reply
  • Jaden Myers

    I wish I could build this stuff like u

    Reply
  • Teo

    Very cool model, but i actually don't understand the sense in the name

    Reply
  • Avohkii

    i love the poem and great build

    Reply
  • Ned

    And la cat playeth le fiddlè….

    Reply
  • KEvronista

    it's a nice scape wheel, but it's very heavy. the 41530 propeller has only 8 blades, but its mass is significantly less, and its single-piece construction makes it very precise. these two characteristics make it the superlative scape wheel. just food for thought.
    KEvron

    Reply
  • KingEurope1

    Moonman

    Reply
  • ProfessorTree

    I just love physics; they make the whole world go 'round. 😀

    Reply
  • ainsleyjms

    Cool. Especially the Moon's eyes.

    Reply
  • ainsleyjms

    By the way, are the transparent bars are only available in the LEGO official website? Just asking. Not for i want it so much (probably not)

    Reply
  • Hasnep

    The music isn't in the description.

    Reply
  • Nelson Baietti

    extraordinary as always!
    how do you come by your lego pieces? regular purchases or are you sponsored by them? (they should!!!)

    Reply
  • Bricktube Studios

    awesome

    Reply
  • TheTranq

    Awesome project!

    Reply
  • Leigh Dupuy

    Incredible! I definitely will try to replicate this, perhaps with a heavier weight and gears to extend the reset time. I just love the sound of an escapement clock.

    Reply
  • Grant Davis

    I tired this once a few years ago, not easy! Very Impressed.

    Reply
  • Joshua Walters

    So does this mean that your going to make a clock?

    Reply
  • LoreZyra . TV

    I would like to see a motorized version. Maybe use a solar panel brick? (http://brickset.com/sets/9667-1/LEGO-Solar-Panel)

    Reply
  • Danielius

    Very elegant!

    Reply
  • Lars Möllering

    Where can I find the instruction? And when…can I have this instruction as a pdf?

    Reply
  • Kevin F

    Absolutely amazing!

    Reply
  • TomatoBrickStudios

    I think you should make some more mythology inspired kinetic models… How about a Minotaur destroying something with his horns?

    Reply
  • Malachy Lewin

    Amazing as always. 🙂

    Reply
  • Mostly Technic Bricks

    Cooool.

    Reply
  • Joey Black

    You should put instructions to your Bricasso printer on your website

    Reply
  • Max Gersch

    These models are truly amazing.

    Reply
  • J Davidson

    Are you going to post instructions on how you made this one?

    Reply
  • Bartolini legosamigos

    I like your ideas 🙂

    Reply
  • TheoFairbanks

    How long does it takes to the weight goes entire down?

    Reply
  • DesignJunkie58

    This is why I love JK Brickworks! Jason can take a well known mechanism (in this case an "escapement") and refine it better than before! Simply Perfect.

    Reply
  • CombraStudios

    It's quite awsome

    Reply
  • Doug Jones

    I have a question with both this one and the Sisyphus model. Are you painting the bricks grey, or are you able to find enough grey bricks for the model?

    Reply
  • CoconutIsBest

    cool, you should make a roller coaster.

    Reply
  • Mongopingy Man

    Nice.

    Reply
  • J Ryman

    Great! Amazing! Please, please, please post some instructions how to make it. I'm having a lot of fun recreating your designs.

    Reply
  • Marks

    Moonman is that you?

    Reply
  • FunctionOverForm TV

    Amazingly creative. Love to see the stuff you build.

    Reply
  • BRICKMASTER

    .

    Reply
  • The World Wide History Of History

    Similar to the clock escapment

    Reply
  • Mardigrasman23

    Wow. Impressive. How long does it run

    Reply
  • redstone boy mincraft

    mooi

    Reply
  • Dillion Grissom

    that is very cool i like the cow

    Reply
  • BrickHouse

    Does the weight have any relevance of the speed?

    Reply
  • H2O Dakine

    sweet. are you thinking about making it into a working clock?

    Reply
  • jeefcake

    I looked at the videos over there > Theres all children shit

    Reply
  • mobslayer2001

    could you not make a mechanism to include two spools so when one weight goes down the force will pull a weight up?

    Reply
  • Noppen Zähler

    Looks sooo nice !

    Reply
  • Mr. Ryman J

    Still anxiously awaiting instructions. Any chance? Also on my wish list are instructions for the device to spin the Hoberman Sphere or Rolling Ball Clock. Many thanks for all your work and effort.

    Reply
  • Strazziya Bochnov IV

    Moonman FTW

    Reply
  • Bonezee

    Cool, but now every single video recommendation to my right is intended for 4 year olds

    Reply
  • The Guitar King

    You're a genius

    Reply
  • RAPTOR 9920

    How do you make that Cow?

    Reply
  • yeet

    Reminds me of moonman

    Reply
  • Lazy Chop

    Brilliant!!!

    Reply
  • Anferny Crab

    do you think i could make one of those cat clocks where the tail is the pendjulum and the eyes move back and forth?

    Reply
  • Simeon Johnson

    :'D

    Reply
  • halynka the deaf frog

    looks kind of like moonman

    Reply
  • MaxRideWizardLord

    Moonman Moonman, can't you see?

    Reply
  • Zach Fry

    Where could I purchase the transparent beam piece holding up the cow?

    Reply
  • YoloPotatoMan

    nice videos!!! These models seem to be so so so so much complicated but you explain it very well!

    Reply
  • Minecraftredstoner

    Great design. And also very educational 😛

    Reply
  • Minecraftredstoner

    Oh One question how long does the weight go down/last before it hits the floor? Thx

    Reply
  • DMGames 12gaming

    Did you built that moon?
    very detailed and the mechanism is cool!

    Reply
  • Сын Jonsicsa

    Your idea LIKE

    Reply
  • R. Owan

    how is builded the gear???

    Reply
  • The Blue J

    Could you make one of the most iconic desk toys of all time? The drinking bird with this mechanism? I think it could be done.

    Reply
  • Ryan Kim

    Huh, I've always wondered how those old pendulum clocks worked. Now I know!

    Reply
  • blue has no clue

    jaaason here

    Reply
  • A Person

    this thing is creepy

    Reply
  • SlendisFi Universe

    Got a prints for a grandfatherclock that needs winding only after 48 hours?

    Reply
  • Minecraftredstoner

    I'm surprised I haven't seen kevron around here 0.0

    Reply
  • Maor Avni

    Your creations should be official Lego sets. So great…

    Reply
  • JG P

    So creative!

    Reply
  • Brick-a-Vision & Disney

    MMMMMMOOOOOOOOOOO

    I just had to.

    Awesome build!

    Reply
  • Andrew Boheler

    What happens if the pendulum is shortened or removed? How did you decide to make it ~80 studs long?

    Reply
  • Sekiberius Welkesh

    Is this a actual this? I mean like not in lego but an actual thing thats sold.

    Reply
  • Ko Amin Samudera

    very cool !!

    Reply
  • Isaac Sp

    Does anyone know if he has instructions with pictures, like LEGO does. It would be easier to make one on my own, because idk all the names of LEGO pieces.

    Reply
  • Rohit Diesh

    Jayayayayason here

    Reply
  • Rens Buzi

    You could make a clock of this 😀

    Reply
  • Dvo rak

    "and i guess that's all there is to it" makes me think about sethbling and especially his automatic video making machine

    Reply
  • Verity W

    I'm sooo glad I subscribed to you!!

    Reply
  • Mark Langenkamp

    I know my comment comes years afterward, but I would have loved to see how you made the 12-pronged escapement gear. I am constantly amazed by the creativity that is illustrated in your videos. Thanks for sharing!

    Reply
  • fgee3

    This is very cowl indeed!

    Reply

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