Swiss Lever Escapement Model for HSNY
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- Опубликовано: 16 апр 2017
- I am building this working model of classic Swiss Lever Escapement mechanism for watchmaking classes of the Horological Society of New York. These classes are publicly available and are designed to educate anyone interested in learning about watch mechanisms.
This educational model shows how Escapement works, which is what makes accurate time keeping possible.
Each part of this model was carefully designed in Autodesk Fusion 360 and printed on Dremel Idea Builder 3D printer. 
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Greatly appreciate your efforts. I am not a mechanical engineer, but there are many things (optimizing the functions) of this self-starting escapement. It amazes me how a bunch craftsmen in Europe from 1600s-1800s who were just trying to make a living to support their families created mechanical timepieces that had a great impact on humanity. Of course, we have time machines nowadays that are far more accurate and more affordable for the common people (thank god or thank clever human beings). But these craftsmen really made a major contribution by just doing their job. We need to have a society where everyone is incentivized to push their respective field/trade forward, because we do not where the next innovation that will make our lives better will come from.
Both useful and helpful, thanks a lot!
Good books are really hard to come by actually. Also, depending on what direction you want to take, there are different books that can get you there faster. Either way, whether you want to learn how to repair existing clocks and watches, or ultimately make your own, this book is a good start, and it's a must read anyway. If you search "horology" and/or "watchmaking" on Amazon, you will find quite a few titles, ranging in price and difficulty level. All you have to do is start your journey, you'll figure out the way!
Recommended book:
Watchmaking by George Daniels
Great demonstration 👏 most people don't show the main spring
Very great 👍👍👍 your idea 💡💡💡 brother 😊😊😊😊
Amazing work, please share more lessons, a pleasure to watch!
Cuestion De Tiempo maybe I should :)
Something like this is very hard to come by, you should be very proud. Thank you
Why don't you add a spring or a coil under the last part as in the 1st part to provide it some potential energy when it is moved
nice sound.. try speeding up the sound.. very accurate. try quarter scale!
power spring might wind more with less coil.. vegitable oil?
Well done man!
Ah, thanks man!
The whole thing doesnt start at the balance spring which is missing here but with the main spring, right?
Yes it's missing the hairspring. The drum contains the main spring.
I am sure that someone else has suggested this but for the friction when ever I model gears for 3d printing I go way over on the backlash for the teeth then after if I need it to be tighter I go back.
Yeah it's a thing. And each filament and nozzle has its own magic value.
The best filament for this is a good quality carbon fiber. Accuracy is fenomenal. Almost no need for extra backlash.
But as far as tolerances, whenever I need a really tight fit, like to fit a ball bearing or a shaft, I use 0.1 mm. 0.2 will be tight but easy to come out. Thats with PLA.
Well done man. Can you suggest books that I can use to self teach the art of watch movement?
I don't know if you saw my comment about the books, it looks like I left a public comment and not a direct reply to you.
Thank you very much Rick.
When barel spring wind up how balance wheel get power because you fix it by hand
นายมนตรี กุสลากรกุล the balance wheel gets its power from the pallet fork itself: after the tooth of the escapement wheel is released, it pushes the fork through the jewel, and the fork transfers energy to the balance by hitting the pin jewel of the wheel he moves by hand. This makes sure the balance wheel keeps oscillating (otherwise it would stop due to friction). If you are wondering how the motion of the balance wheel begins for the first time, I think it starts accidentally when you move the watch (e.g. While winding it up)
@@andreabarbiera5212 Thx so much
Does the fork transfer power only on one way and the hair spring returns it, or does it transfer power on both directions?
The watch does not start from the impulse jewel like you are demonstrating. How does it start by action of winding the main spring? I know I'm missing something that is obvious to many.
The hair spring is very sensitive and will oscillate ever so slightly from the movement of the hand, which will start the mechanism if the mainspring is wound.
8:15 "This is very satisfying... It's ridiculous." 😂
😍🔥👍❤
Very useful model but what makes the back and forth action. In the model it's your hand.
I am actually revisiting this project now and will atart posting updates.
Btw at that time I didn't know yet what I was going to do for hairspring. Now I do.
@@riccello Ok Thanks
Get a balance spring on that bad boy!
Why didn’t you put a hair spring ?
I did after I made the video. It was 3D printed but I didn't like the way it performed. Then things got in the way. I am revisiting this now. Got a better design, everything is smaller and more precise. Hopefully I will be posting new videos soon.
Here before everyone else gets directed here by our algorithmic overlords.
Did it get recommended to you?
Needs to maintain a uniform torque! good job anyway!
Your missing the escapement spring. It will never work until you add this.
CaptRon817 that is a true statement my friend.
This video should be compressed in a couple of minutes...
ti manca un Biilancere ( volano flywell )
Vedo che scrivi in Italiano 😊
🤔 Ma come funziona esattamente questo bilanciere?
I feel like your fork needs to be shorter in length. You're losing a lot of mechanical advantage I feel by having that fork so long. Also, an oscillator would be needed once you get the mechanical advantage issues solved.
The Bladesmith this is a replica design from official blueprints of the classic Swiss lever escapement, so as replicas go, you don’t modify them. That said, the length of the fork is not problematic. It works as it should.
I would absolutely agree, if this was a machined part. If you want a function escapement, you're going to have to modify design to account for the mechanical losses of drag from the differences in manufacturing. Escapments are hand crafted, hand polished, and mostly gem tipped to minimize friction losses. This, is almost specifically the polar opposite of that process. Minimizing friction, and increasing mechanical advantage here would be of great improvement when dealing with additive manufacturing.
@@riccello plus, as an added benefit, maybe you'll stumble across something great. I'd aim for a non functional replica, and then create a derivative piece that's functional. Maybe sell the stls when you're done, depending on how much you change and what you need to tweak. I'd buy them!
cool, but it doesn't need to be that big (that's what she said)