[HN Gopher] Mechanical Watch (2022)
       ___________________________________________________________________
        
       Mechanical Watch (2022)
        
       Author : Akcium
       Score  : 922 points
       Date   : 2023-12-10 12:28 UTC (2 days ago)
        
 (HTM) web link (ciechanow.ski)
 (TXT) w3m dump (ciechanow.ski)
        
       | KolmogorovComp wrote:
       | Previous discussion https://news.ycombinator.com/item?id=31261533
       | on May 4, 2022, 413 comments
        
         | throw0101c wrote:
         | Other topics are gears, floating point, naval architecture,
         | cameras & lenses, and GPS:
         | 
         | * https://news.ycombinator.com/from?site=ciechanow.ski
        
       | Loughla wrote:
       | Holy shit this might be the most functional, clearest website
       | I've ever used.
       | 
       | I always wondered what all those bits and bobs inside as
       | mechanical watch are.
        
         | matsemann wrote:
         | You should check out their other articles. I've previously read
         | the Bicycles one and the GPS one, both great.
         | https://ciechanow.ski/archives/
        
       | ChrisMarshallNY wrote:
       | This guy's stuff is always a joy.
        
       | JR1427 wrote:
       | Beautiful.
        
       | pyr0hu wrote:
       | This post is what got me into mechanical watches as I've always
       | wondered how the analogue clocks/watches work but couldn't bother
       | myself to actually read upon it. But after the article, I even
       | got myself a clean Seiko 5 automatic, not because I wanted a
       | fancy watch, but I wanted to own a piece of mechanical wonder.
        
         | lvl102 wrote:
         | Grand Seikos are some of the best mechanical watches. Their
         | quartz line is also exceptional. Very underrated and much
         | prefer them over overpriced Rolex.
        
           | neor wrote:
           | The Spring Drive movement is amazing, very accurate, very
           | high quality and that smooth sweeping seconds hand is
           | mesmerizing. Availability is good, and the price is a lot
           | better than the high-end Swiss brands.
           | 
           | Rolex these days is a joke, even the authorized dealers will
           | rip you off shamelessly. They will either refuse to sell you
           | a watch they have in store, or they will force you to buy 30
           | grand in extra jewelry just to get the Rolex you want.
        
             | DeathArrow wrote:
             | Since it has electrical components, I think Spring Drive
             | isn't a mechanical movement.
        
               | alpaca128 wrote:
               | That's true but it's still driven by a spring and mainly
               | mechanical. I understand people who don't like it, but I
               | also see it as a reasonable tradeoff and find them just
               | as fascinating as purely mechanical models. In the end
               | people wear them for the same reasons.
        
               | gurchik wrote:
               | It's a mechanical movement regulated by quartz. In a
               | traditional mechanical movement, the escapement prevents
               | the main spring from unwinding all at once. It is done
               | with a fork which ticks at a certain rate governed by the
               | balance wheel. In a Spring Drive movement, the escapement
               | is replaced with an electromagnetic "brake" governed by a
               | quartz crystal. So it still has many of the
               | characteristics of a mechanical watch: it's still powered
               | entirely by a main spring which can be wound or
               | automatically wound by your body movements, it needs
               | regular maintenance like other mechanical watches, and it
               | isn't as durable as most quartz-only watches.
        
           | criddell wrote:
           | Many Rolex models seem expensive, but they are easy to sell
           | and you will get much of your money back or even turn a
           | profit.
        
             | lvl102 wrote:
             | I agree with you. I used to stock up gold Rolexes as
             | investment but sold them when their value peaked during the
             | pandemic. For collection purposes? Rolexes are duds.
        
           | pyr0hu wrote:
           | Never was interested in Rolexes, too flashy for my taste.
           | Seikos are sporty, can match with everything and does not
           | want to show off to everyone
        
         | bigie35 wrote:
         | I feel like most watch folks have at least 1 Seiko in their
         | watch case at least once in their collecting journey. Fantastic
         | watches, enjoy!
        
           | ddingus wrote:
           | Seiko fan here. Seconded.
        
           | quickthrowman wrote:
           | Seiko SNK807 and Seiko SKX009, reporting for duty.
        
       | samgranieri wrote:
       | This was the most engrossing article I've read in a while.
        
         | quakeguy wrote:
         | Check the whole blog, the amount and detail of JS animations on
         | all the different topics is awesome.
        
       | dallyo wrote:
       | Incredible as usual. Like a visit to a science museum. Wikipedia
       | should commission this guy to explain all the things in this
       | intuitive, interactive, visual way.
        
         | amitp wrote:
         | He's not taking commissions, although maybe he'd make an
         | exception for wikipedia.
        
           | jamestimmins wrote:
           | Do you know where he says he's not taking commissions? Just
           | curious bc I wonder who is trying to commission this kind of
           | stuff, and what his reason is for not doing it.
        
       | gwbas1c wrote:
       | My favorite watch ever was a self-winding mechanical Swatch. I
       | suspect they (Swatch) acquired the company that made it.
       | Disappointingly, when the pins that held the band on started to
       | slip, there was no good way to repair it.
       | 
       | I've since switched to a smart watch, but I keep getting tempted
       | to go back. I generally use my smart watch as a very gentle
       | alarm, and for fitness tracking. I just don't want to be the geek
       | who wears two watches. Maybe I should only wear it at night?
        
         | ghostganz wrote:
         | A self-winding watch needs to be worn for hours each day to not
         | run out of power. A manual-wind watch will be a better choice
         | for a night-only mechanical watch.
        
           | jgwil2 wrote:
           | You can get a watch winder to keep your automatic wound even
           | if you don't wear it all the time.
        
           | gwbas1c wrote:
           | I took off my self winding watch at night and it worked fine.
           | 
           | > night-only mechanical watch
           | 
           | I said that I was thinking of only wearing a smartwatch at
           | night, because I really like the gentle alarm in the morning.
           | 
           | What I didn't say was that I use a smartwatch for tracking my
           | sleep patterns.
        
         | massenpunkt wrote:
         | The Swatch brand was founded 1983 by ETA CEO Thomke and his
         | Engineers. ETA is a watch movement manufacturer.
         | 
         | Speaking of Swatch and mechanical watches: the Sistem51 is an
         | interesting watch, since it's the only mechanical watch ever
         | fabricated in a 100% automated production line. The parts are
         | welded together and held by a single screw.
         | https://www.swatch.com/en-us/sistem-51.html
        
       | steezy13 wrote:
       | I have been torn between wearing mechanical watches and smart
       | watches. I don't need/want/like notifications on my wrist, but I
       | really enjoy the activity and heart rate tracking of the Apple
       | Watch.
       | 
       | I have been reluctantly wearing a Samsung Withings watch that
       | looks mechanical but is actually smart, but a mediocre compromise
       | (you need to wear it higher up the wrist than I usually do, and I
       | don't believe it gives accurate heart rate and activity
       | measurements). 30 day battery life is pretty cool though.
       | 
       | I may just start going back to my Vostok and Seiko watches full
       | time at this point. (I don't like spending a lot of money on
       | watches, anyone who is curious on getting into them should check
       | out both brands as economical starters - the Vostok Amphibia has
       | a storied history!)
        
         | mattkopecki wrote:
         | Consider something like a Whoop or Oura Ring which monitors
         | health metrics but doesn't rely on a watch? That's what I've
         | settled on so that I have the best of both worlds.
        
           | FirmwareBurner wrote:
           | Those are subscription based though.
        
             | 0xffff2 wrote:
             | Wow. I had looked at the Oura Ring before and thought it
             | looked cool, but I missed that it basically requires a
             | subscription, which is wild considering it seems like I get
             | all of the same metrics from my Garmin watch with no
             | subscription required.
        
         | akshayrajp wrote:
         | Try Garmin Instinct? It's a digital watch (not analog) and more
         | of a fitness tracker than a smart watch. You can disable any
         | notifications you don't want.
        
           | Ginguin wrote:
           | That's where I ended up. My Instinct has replaced my
           | mechanical watches for every occasion except for the most
           | formal. The app is decent, the metrics are awesome, and the
           | accessories work without fuss (I pair mine with the Heart
           | Rate strap when doing kettlebell stuff). I love my other
           | watches and still have one or two I will eventually convince
           | myself to buy, but the Garmin Instinct 2 has been on my wrist
           | for 90% of the last year.
        
         | atmosx wrote:
         | Mechanical watches these days are primarily about aesthetics.
         | Although I must say that I find myself reaching less and less
         | for my mobile these days to find out the time because I wear a
         | mechanical watch.
         | 
         | A smartwatch is about data, primarily.
         | 
         | You can have both. Use the mechanical watch for occasions that
         | require a formal attire and use the smartwatch as your daily
         | driver and sport companion.
        
         | wkat4242 wrote:
         | For me it's the opposite. Notifications and payments are my
         | main benefit. I would never wear a watch that shows only the
         | time (hence I never wore one since the late 90s until mid
         | 2010s). Sleep tracking with SpO2 is a big thing for me too
         | though.
         | 
         | I think mechanical watches are much more about being jewellery
         | than function, even though it's impressive engineering. But I'm
         | not a very flashy guy (I don't even own any shirts that fit
         | anymore, just T-shirts lol) so I don't really care.
         | 
         | But it's good to see everyone can get what they like. I'm
         | personally really happy with how far smartwatches have come.
        
           | lawn wrote:
           | I'd like a watch that does two things:
           | 
           | - Shows the time (and possibly date)
           | 
           | - Vibrates when I get a call (or maybe other notifications)
           | 
           | Other than that I'd like it to be small and have a long
           | battery life. Is there anything like this?
           | 
           | I currently use a Garmin smartband, but there are so many
           | features I don't use.
        
             | wkat4242 wrote:
             | Yes I've seen that kind of watch too. I forget which brand
             | it was but it was one of the mechanical brands.
             | 
             | For what it's worth, the amazfit and Xiaomi products also
             | have very great battery life (around 2 weeks) and some are
             | very light. With the gadgetbridge or notify for Android
             | apps they're really privacy conscious too.
        
             | criddell wrote:
             | Maybe the basic (and old) Fitbit Charge? It has a
             | pedometer, time, and vibrating alarm.
        
             | peebeebee wrote:
             | I think Fitbit Inspire would do the job. Loved that multi-
             | day battery life too.
        
             | steezy13 wrote:
             | If that's your use case, definitely check out the Withings
             | Scanwatch line. If you're not using a lot of the other
             | features, the battery can prob go well over 30 days between
             | recharging.
        
             | naremu wrote:
             | If you're cheap/privacy/FOSS focused like myself, I find
             | the "PineTime" is largely the modern day Pebble watch.
             | 
             | It may not literally watch every breath you take while you
             | sleep, but I haven't wanted that personally anyways.
             | 
             | Only real drawbacks are battery life is only OK (about a
             | week or so depending), the IPS screen can be bright in the
             | dark (though it's a nice flashlight) and it only has 1
             | meter of water resistance, though it seems well sealed
             | enough to trust it if I fall into water momentarily. (And
             | really, swimming/showering with watches is kind of niche
             | anyways)
        
         | DriverDaily wrote:
         | For me it was an easy choice. First, I was starting to worry
         | about heart health. Second, my mechanical watches could be sold
         | for more than I paid for them.
        
         | al_borland wrote:
         | I wear a smart watch at the gym to track my heart rate, but
         | when not at the gym I wear a mechanical watch (or some other
         | normal watch... I recently got a Casio World Time I have love
         | way more than I probably should).
         | 
         | I had an Apple Watch, but sold it, as I felt guilty not wearing
         | it more, with all that it can do. I ended up getting the
         | cheapest Polar watch option, that does everything on-device (I
         | don't have an account or anything), and can wear that to the
         | gym if I just want to check out my heart rate.
        
         | I_Am_Nous wrote:
         | I had both a Pebble v1 and a Pebble v2 and loved them both.
         | Pebble went defunct though, so I switched back to a Seiko 5
         | automatic dive watch once I found I didn't really care for any
         | of the other available smart watches at the time.
         | 
         | There's something beautiful to me about a mechanical watch
         | being tied to my personal relativity. Compared to an NTP
         | synchronized smart watch, nothing should update the time on my
         | watch but me. The actual usefulness of this feature is merely
         | philosophical but it makes me happy to consider.
         | 
         | The only thing I miss is weather at a glance on my Pebble. I
         | used a watch face with the temperature on it and to this day I
         | still look at my wrist when I'm thinking about the temperature
         | lol
        
         | HPsquared wrote:
         | I have a Pixel Watch and I must say, I enjoy the sweeping
         | second hand.
        
         | shepherdjerred wrote:
         | Is there any reason you don't just disable notifications?
         | That's what I've done on my Apple watch and I've loved it.
        
           | macintux wrote:
           | I disabled all but the most important notifications (calls,
           | texts primarily) and it's been great. I no longer have to
           | drag my phone out of my pocket when someone calls me, and all
           | unnecessary notifications can wait until I'm bored.
        
         | bayindirh wrote:
         | I was wearing a MiBand and getting ready to get an Apple Watch.
         | Then my wife got me a Longines auto. I'll never go back to
         | smartwatches again.
         | 
         | I'm not a collector when it comes to watches, and I can happily
         | wear that Longines until the end of time, and will be happy.
         | 
         | Having a tactile watch with real hardware with no electricity
         | inside brings me more joy than some capable electronic toy
         | which needs constant tending and replacement.
         | 
         | If I was climbing mountains, maybe but mere outdoor activities
         | I have a ProTrek. More than enough.
        
           | pklausler wrote:
           | In a similar story, my wife gave me an Omega calibre 1861
           | Moonwatch years ago, and I nearly always wear it. But a few
           | years ago, I got an Apple Watch for running, and now I often
           | wear _both_ , because I like the heart monitor, the haptic
           | hints while driving, and don't always have my phone along. I
           | wish the Apple Watch had a face that didn't have a time
           | display.
        
         | bpesquet wrote:
         | Personal and subjective opinion ahead.
         | 
         | Any smartwatch will become unusable, polluting garbage a few
         | years (months?) from now: a canonical example of planned
         | obsolescence. Their self-tracking functions are a double-edged
         | sword, a source of stress as much as relief.
         | 
         | Any well-built and well-maintained mechanical watch will last
         | you decades. No dependencies on electricity and network
         | connectivity, it's a self-contained and entirely autonomous
         | piece of human engineering. Mine was built in 1975 and is one
         | year older than me. In a world where everything fades away so
         | fast, wearing it everyday feels like owning a precious relic.
         | 
         | Easy choice if you ask me.
        
           | naremu wrote:
           | >No dependencies on electricity and network connectivity,
           | it's a self-contained and entirely autonomous piece of human
           | engineering.
           | 
           | This already veers straight back into the marketing territory
           | that everyone in this thread remarks was an eye opener when
           | they actually got a mechanical watch.
           | 
           | I have a mild prepper tendency and I had to eventually kill
           | my romantic views of mechanicals when I realized it just time
           | drift and wouldn't last long without regular maintenance from
           | someone with the tools and knowledge/skill, not to mention
           | someone in this very comment section mentions a mechanical
           | watch suffering a death from drop onto carpeted floor.
           | 
           | Mechanical watches are cool, but I easily spend less time
           | without my PineTime (which I'm surprised nobody else in these
           | comments has even mentioned) working than my friend spends
           | manually syncing his seiko back to time/maintaining it.
        
             | nequo wrote:
             | I never heard about PineTime until now! Looks like a cool
             | gadget. What has your experience been with it, apart from
             | it being more accurate than a mechanical?
        
               | naremu wrote:
               | It's an interesting experience, I have github send me an
               | email on the odd occasion the community developed "OS"
               | gets an update. Then I download the zip file on my phone
               | browser and upload the file on Gadgetbridge for the
               | update.
               | 
               | I sometimes call it my "soviet in a good way" watch, it
               | ended up becoming my "function over fashion" watch, which
               | means almost all day every day wear for a few years now.
               | 
               | pros:
               | 
               | decent battery life (1-2 weeks, i turn off bluetooth and
               | gps on my phone overnights which helps both devices)
               | 
               | "good enough" design (durable enough for all but
               | swimming/showering)
               | 
               | easily replaced or modified (even takes standard watch
               | bands)
               | 
               | flashlight, notifications and all traditional digital
               | watch functions
               | 
               | multiple community "OS" options
               | 
               | cons:
               | 
               | community development can be slow, buggy
               | 
               | water droplets particularly from natural rain can trigger
               | the touchscreen, not amazing if you bike in seattle or
               | something
               | 
               | anemic hardware
               | 
               | The charger is cheap and isn't that quick but again, the
               | pinetime kind of excels in knowing the difference between
               | good and good enough, as I once heard an engineer say
               | (about something else), and I rarely find myself bothered
               | by it's lack of luxuries.
        
               | nequo wrote:
               | Thanks for sharing your pros and cons!
               | 
               | What do you think is the PineTime's biggest strength when
               | compared with a mainstream smartwatch?
               | 
               | Have you found the watch to be hackable? Is there any
               | sort of customization that you've done to it?
        
               | naremu wrote:
               | >What do you think is the PineTime's biggest strength
               | when compared with a mainstream smartwatch?
               | 
               | Frankly, I think the combination of price/replaceability
               | and privacy are the only things unique (besides niche
               | FOSS modding) to it among smart watches; and I like the
               | open aspect of essentially every detail.
               | 
               | It makes it the only smart watch I've used that feels
               | like it respects my dignity, frankly. A minor
               | philosophical quibble but one I take stoic pleasure in.
               | It is a tool, and technology that serves me, not another.
               | 
               | > Have you found the watch to be hackable? Is there any
               | sort of customization that you've done to it?
               | 
               | I actually got it hoping I'd have the inclination to
               | tinker with it, but my only idea that wasn't already
               | being worked on by the default "OS" is a red flashlight
               | mode, which with the IPS screen is a moot point anyways,
               | since the black pixels when turned on make for a low-
               | light flashlight anyways, heh. A hardware drawback that
               | ironically makes it a more accessible tool in my
               | experience.
        
             | bpesquet wrote:
             | The PineTime is still an electronic gadget that you won't
             | use for very long.
             | 
             | My watch takes 15 seconds to rewind each day, and 5 seconds
             | to be time adjusted by one minute twice a week. Service is
             | every 5 years, the last one cost me 88 EUR. It gets more
             | valuable each year, and I plan to bequeath it to my son in
             | a (hopefully) very distant future.
             | 
             | To each his own, I guess.
        
               | naremu wrote:
               | Rewind? As in a non-automatic mechanical?
               | 
               | Admittedly, all the mechanical watch issues I've read
               | tend to be pertaining to the automatic variety.
        
               | bpesquet wrote:
               | Yes, it's manual. I have no experience with automatic
               | ones.
               | 
               | Admittedly, it is a rather pricey model (Omega
               | Speedmaster). I bought it second hand for 1500 EUR a few
               | years ago. Unfortunately, prices have since skyrocketed
               | for many emblematic watches like this one.
        
         | runeb wrote:
         | I wish I could buy an Apple Watch without screen, crown and
         | button. Just a smart disc to record all my Health and activity
         | data, worn under my wristwatch
        
       | cloogshicer wrote:
       | I've been a long time admirer of the interactive animations on
       | this site.
       | 
       | What tool/library would you pick to create similar ones yourself?
       | 
       | Looking at the source [1], the author seems to hand-craft them
       | using the canvas API, but man, that seems really difficult!
       | 
       | [1] https://ciechanow.ski/js/watch.js
        
         | naet wrote:
         | Bartosz does an amazing job of making custom interactives and
         | animations to support his articles. It looks like he uses
         | custom canvas with webgl for the 3d renders.
         | 
         | There are 3d engines in JavaScript like three.js
         | (https://threejs.org/) that can abstract some of the 3d
         | rendering work for you.
        
         | amitp wrote:
         | I agree with naet that threejs might be the thing to look at if
         | you want to make 3d animations. My own interactive diagrams are
         | 2d, and I often use svg with reactive data filling in the
         | parameters. [1] I've also tried hand crafting and it's not so
         | bad for pages like this. They're _mostly_ write-once pages, not
         | software that 's being maintained for many years. Some of our
         | intuitions are out of whack when they tell us that we _need_
         | abstractions and frameworks for maintainability.
         | 
         | [1] https://www.redblobgames.com/making-of/circle-drawing/
        
         | amelius wrote:
         | I was hoping this is based on an open source physics engine,
         | but apparently it's all handcrafted.
        
       | bejd wrote:
       | Nice to see this again. Such a clear breakdown of a complex
       | topic, presented beautifully.
       | 
       | Tangentially related, the documentary The Watchmaker's Apprentice
       | [0] is a captivating look at the dedication it takes to create a
       | mechanical watch. It's amazing that it's possible for a single
       | person to craft each tiny cog and spring from scratch and put it
       | all together.
       | 
       | [0] http://www.thewatchmakersapprentice.com/
        
       | lloeki wrote:
       | Same fantastic format, different topics:
       | 
       | - bicycle: https://ciechanow.ski/bicycle/
       | https://news.ycombinator.com/item?id=35343495
       | 
       | - sound: https://ciechanow.ski/sound/
       | https://news.ycombinator.com/item?id=33249215
        
       | fellerts wrote:
       | This blog is what got me into the fabulous hobby of watch
       | repairing. Well, this blog and Marshall's awesome repair videos
       | over at Wristwatch Revival:
       | https://www.youtube.com/@WristwatchRevival
       | 
       | Watch repairing is a very rewarding hobby. It requires copious
       | amounts of patience, but there's something fundamentally
       | satisfying about disassembling something to its individual
       | components, cleaning them and reassembling them meticulously.
       | These things are designed to be taken apart, and it shows. I'm
       | hard-pressed to think of other modern day objects that are meant
       | to do this.
        
         | sricciardi wrote:
         | > _These things are designed to be taken apart, and it shows. I
         | 'm hard-pressed to think of other modern day objects that are
         | meant to do this._
         | 
         | A mechanical film camera (say, a Leica) is similar. They are
         | also meant to be opened, cleaned up, lubed, etc...
        
           | j4yav wrote:
           | Espresso machines, as well, and vintage stereo equipment. I
           | have really come to appreciate the zen of user-serviceable
           | physical stuff.
        
             | ce4 wrote:
             | I can relate - i took repairing espresso machines as a
             | hobby since the pandemic. The parts are not complex at all
             | and even 60+ years old E61-machines can be serviced easily
             | (apart from not so cool stuff like asbestos as boiler
             | insulation, leaded solder for boiler + fittings and mercury
             | pressure switches).
             | 
             | But even todays machines (depending on manufacturer and
             | origin) are very serviceable. Especially italian made ones.
        
               | j4yav wrote:
               | For sure I have a La Pavoni and I can get parts lists,
               | diagrams, and everything else I need to rebuild the whole
               | thing if I needed to.
               | https://www.lapavoni.com/en/technical-documentation
        
               | ce4 wrote:
               | Great espresso machine! Very pretty and takes almost no
               | space + heats up promptly. I had a pre millenium
               | "professional" model until last year (not my daily driver
               | though).
               | 
               | I had a Dalla Corte mini as main machine but couldnt
               | resist a great offer and upgraded to Ascaso Baby T
               | recently :)
        
               | mianos wrote:
               | What surprises me about the Italian coffee machines is
               | you can buy many of the parts at a local hardware store.
               | They look home made. The Chinese ones seem to be 100%
               | custom parts, maybe to account for price at scale.
        
               | solardev wrote:
               | During the pandemic, I tried to work on my Jura, a Swiss
               | automatic espresso machine with an integrated hopper and
               | grinder. Totally failed :(
               | 
               | It's a great machine (got it refurbed and it's lasted
               | nearly a decade already), but not at all easy to take
               | apart. It's a lot of electronics though.
               | 
               | I take it the manual ones are easier to service?
        
           | eggy wrote:
           | Lenovo vs. Apple notebooks. My ThinkPad T430u comes apart
           | simply and you can remove subassemblies quite easily. I
           | replaced the touchpad and battery on my daughters MacBook Pro
           | and it was a nightmare.
        
         | mikestew wrote:
         | A co-worker keeps a blog of his watch restorations. I have no
         | interest in the hobby, but I do have an interest in viewing the
         | work of someone that does. Of particular interest to me is that
         | what he restores isn't high-end stuff, but common watches that
         | might have one particular bit of history that makes them
         | interesting. Radium dials, for example.
         | 
         | https://www.westcoasttime.net
        
         | graphe wrote:
         | Guns, small engines, and 3D printers are its larger modern
         | cousins.
        
           | bluescrn wrote:
           | 3D printers have very little mechanical complexity. It's all
           | in the software.
           | 
           | If it wasn't for the computing power/software complexity
           | required, hobbyist 3D printers could probably have been a
           | thing in the 70s or 80s
        
             | graphe wrote:
             | They're not complex, just easily taken apart and meant to
             | be repaired by humans. The software isn't particularly
             | complex either, the reason for their surge recently was due
             | to patents expiring for additive manufacturing.
             | https://futurism.com/expiring-patents-set-to-
             | improve-3d-worl...
        
               | bluescrn wrote:
               | Yeah, I suppose the software to control the printer is
               | the relatively straightforward bit, the complex part is
               | the software that slices the model and converts it into
               | an efficient set of G-code commands for the printer.
               | (That and the software used to create 3D models to begin
               | with...)
        
               | graphe wrote:
               | That isn't complex either. There was no reason besides
               | patents that 3D printing could have been a reality
               | decades ago. Simple math is all you need and gcode isn't
               | just 3D printing it's also for CNC, something that was
               | able to be done around that time.
        
             | WillPostForFood wrote:
             | While 3d printers aren't necessarily complicated they are
             | fun to watch. They are like an inside-out machine. Most
             | machines are hidden in some sort of casing or under a hood.
             | 3d printers are exposed, so you are able watch the gears
             | spin, belts turn, and the print head extrude.
        
               | FpUser wrote:
               | Watching one right now as it prints power pads for my EUC
               | (Electric Unicycle)
        
             | eternityforest wrote:
             | Everything about 3D printing seems to be basically free of
             | any kind of nonsense. Simple, highly reliable hardware
             | (Sometimes you get a clog or something but nothing really
             | fails badly for a very long time), made of cheap commodity
             | parts, with software constantly being pushed to the limit
             | of what's possible.
             | 
             | So many other hobbies feel like they're just excuses to
             | bikeshed or gear collect, or they rapidly become gear
             | collecting hobbies, sometimes leading to some
             | disappointment in yourself when you see the hoard you never
             | use.
             | 
             | Plus, it's repeatable, so you don't have to build daily
             | routines around something irreplaceable. Some people enjoy
             | that, but it doesn't fit well in the high tech mindset
             | where anything that isn't repeatable feels like a
             | liability, especially if managing physical objects and
             | keeping track of your stuff is already a major source of
             | stress.
             | 
             | Files don't wear out either, so it's not like software,
             | where you assume it will likely need maintenance at some
             | point and could stop working in a system update at an
             | inconvenient time.
             | 
             | It also doesn't need much space or expensive equipment, and
             | doesn't take so long to learn that us modern screen addicts
             | would probably just give up before making progress.
        
             | bsder wrote:
             | > If it wasn't for the computing power/software complexity
             | required, hobbyist 3D printers could probably have been a
             | thing in the 70s or 80s
             | 
             | That statement completely ignores enormous quantities of
             | engineering that have occurred.
             | 
             | Stepper motors, for example, had _huge_ amounts of
             | engineering thrown at them by disk drive manufacturers in
             | order to get them where we are now.
             | 
             | Resin printers needed high precision galvanometers to
             | direct laser beams. The control of that would have been
             | ridiculous in the 1980s.
             | 
             | Modern resin printers rely on high-resolution monochrome
             | LCD displays. That requires cheap LCDs (only remotely
             | viable after 1990+) as well as enormous quantities of
             | embedded RAM (4K monochrome takes almost 1MiB of RAM which
             | was _half the total memory_ of Powerbook 100, for example).
             | 
             | And modern printers rely on high-power UV LED sources to
             | create uniform flux. Blue+ wavelength LEDs we're a decades
             | long research task.
             | 
             | Revolutionary technologies appear when a _series_ of
             | engineering barriers drop that allow a synthesis of ideas.
             | 
             | The printing press is a good example. Lots of people talk
             | about how the Chinese and the Muslims had the printing
             | press, but that wasn't enough. The printing press needed
             | engineering in paper, inks, moveable type, eyeglasses, an
             | alphabet, etc. before it could take off.
        
         | CamperBob2 wrote:
         | _Watch repairing is a very rewarding hobby. It requires copious
         | amounts of patience, but there 's something fundamentally
         | satisfying about disassembling something to its individual
         | components, cleaning them and reassembling them meticulously.
         | These things are designed to be taken apart, and it shows. I'm
         | hard-pressed to think of other modern day objects that are
         | meant to do this._
         | 
         | '1337 watch-repairing skillz qualify you to work on nukes:
         | https://apnews.com/article/nuclear-warheads-military-bomb-pl...
         | There are thousands of tiny parts inside each warhead,
         | so steady hands are key. That's why technicians go
         | through a skills assessment that includes disassembling
         | and assembling a mechanical wristwatch.
        
         | MeImCounting wrote:
         | Pocket knives! Nice modern pocket knives should be disassembled
         | and maintained regularly.
        
           | maxerickson wrote:
           | I have a Kershaw Leek, which while it isn't particularly
           | expensive, is easily on the "cost exceeds direct utility"
           | side of things, is easy to take apart, and I can't imagine
           | what I would regularly take it apart for.
        
             | MeImCounting wrote:
             | Well if you carry it regularly, when you take it apart you
             | will find there is lots of lint and other gunk on and
             | around the detent ball, in and around the pivot and
             | elsewhere. Upon cleaning and oiling it you will probably
             | notice the action is a lot smoother. In rare cases if it
             | gets really gunked up it can actually effect the locking
             | mechanism of the knife presenting a potential safety
             | hazard. Having your pocket knife close on you while
             | breaking down a cardboard is no fun!
             | 
             | Kershaw leek is really a great knife.
             | 
             | Also keeping your pocket knife sharp is another example of
             | it being directly maintainable and repairable. I often
             | spend several hours a month sharpening my pocket knives
             | though I probably have a few more than the average person.
        
             | yabbs wrote:
             | I've had spring bars break twice with the Leek. Replacement
             | parts were sent for free!
        
         | jrockway wrote:
         | That is a great channel. It's definitely made me consider
         | getting into that hobby. Seems very relaxing.
        
           | tomchuk wrote:
           | Very relaxing. Until impossibly small $15 Incabloc springs
           | start flying around the room. I'm convinced these sublimate
           | into a vapor the moment they fly out of view of your loupe.
        
             | mianos wrote:
             | Not relaxing to me, like the YouTube videos. It is
             | difficult and frustrating. It is very easy to wreck things
             | like brass threads. Often lots of things are seized up on
             | anything more than a few years old. Fun all the same.
        
               | Double_a_92 wrote:
               | If screws seem seized up make sure that your screwdrivers
               | tips are properly shaped.
        
         | shostack wrote:
         | I wish there was a good beginner level entry point with a kit
         | or something. But most of what I saw was "you need to build
         | your own tools and then you can start" and that's too high a
         | barrier for me.
         | 
         | Is there by chance a simulator of this on Steam if a good
         | beginner hobby kit doesn't exist?
        
           | kQq9oHeAz6wLLS wrote:
           | Bah, don't listen to 'em. Inexpensive set of jeweler's
           | screwdrivers, and pair of precision tweezers, some sort of
           | magnifying device, and a couple oils (use Liberty oil for the
           | pivots, it's cheap but good enough to start). Cheap oiler
           | tools off eBay or amazon. I have maybe $50 in tools.
           | 
           | Buy some cheap movements off eBay, and dive in. Yeah, you'll
           | lose parts and break things but you'll learn a bunch.
           | 
           | I have a couple Westclox watches from the 60s that I bought
           | for $10/each on eBay, and they both now run at +/- 2 seconds
           | a day.
        
           | Double_a_92 wrote:
           | A set of small screwdrivers (at least one 0.8mm and one 1.2mm
           | or so), pointy tweezers and a movement holder should be all
           | you need to try the hobby out.
           | 
           | The screwdrivers and tweezers should be of good quality
           | though, at least get the ones that cost 3-4$ each from China.
           | 
           | And you don't even need a mechanical watch. Cheap quartz
           | watches also have tiny interesting parts in them that you can
           | try to disassemble and reassemble.
        
         | webnrrd2k wrote:
         | I think that older film cameras have a very satisfying-to-use
         | quality to them. I find that an Olympus OM-2 with a good lens
         | feels sooo nice to use.
         | 
         | I know, not exactly the same as repairing fine watches, but I
         | think it might be similar.
        
         | systemvoltage wrote:
         | Marshall's channel is amazing. He is so humble and always
         | curious about learning. It got me into watchmaking as well,
         | primarily because his attitude of "If I can do it, so can
         | you!".
        
         | Double_a_92 wrote:
         | > These things are designed to be taken apart
         | 
         | This is so true. I used to repair phones and other gadgets
         | before starting with watch repair... and I was kinda scared to
         | take apart something filigree like a watch because it surely
         | would never go back togheter properly.
         | 
         | But no, everything goes back togheter fine without having to
         | apply any kind of force. If it doesn't it's 99% my fault. E.g.
         | even tiny screwholes are slightly tapered so the screws kinda
         | fall in there automatically.
        
         | saiya-jin wrote:
         | Watches are pretty amazing, a mechanical engineering marvel
         | crammed into tiny compartment that can easily keep working for
         | 100 years with minimal upkeep, very sturdy, looking great at
         | almost any design era and helping with time. I never got the
         | lure of 'smart' watches of these days, they all look like
         | plastic toys for kids including most expensive ones, definitely
         | when compared to good mechanical watches. Also in formal
         | environment its one of few 'jewelry' items that are always
         | allowed along with wedding ring, anything else may raise
         | eyebrows and give negative points depending on
         | location/company.
         | 
         | I've seen people's OCD around me or similar issues getting
         | worse with arrival of smart watches and nearly constant
         | interruptions from notifications. Yet those folks don't turn
         | them off even if I mention visible degradation on their part, I
         | guess then they would end up with charging-needy expensive-yet-
         | soon-obsolete gadget without much else (sport monitoring is
         | cool for some folks, again I simply don't get the desire for
         | constant measurements and comparisons - for me it takes away
         | most of the fun that sports should be in first place, I focus
         | on being challenged at my current level, not chasing some
         | meaningless numbers).
         | 
         | I guess if one is 'free' from such things the described effect
         | is less bad, but why the heck would I ever wanted to be
         | notified instantly on my hand when something happens? Peace of
         | mind and clear focus are rare and precious things these days,
         | and this destroys it for few seconds of dopamine kick.
        
           | randomcarbloke wrote:
           | wearing a wristwatch with full formal is still a bit of a
           | faux pas.
        
             | CamperBob2 wrote:
             | Rich: Rolex
             | 
             | Wealthy: Patek Philippe
             | 
             | True wealth: "I DGAF what time it is _or_ what looks good
             | with this jacket "
        
       | Rudism wrote:
       | I have a relatively inexpensive Seiko 5 mechanical watch that I
       | really like, but as much as I love the idea of mechanical watches
       | I simply don't have the patience to tend to it. Accuracy is a big
       | problem (at least with my specific watch). Half of the time it's
       | magnetized and running a few minutes fast per day, and the other
       | half (shortly after de-magnetizing it) it's running a few minutes
       | slow per day, meaning I needed to remember to adjust it every
       | morning and always had to assume there's at least a minute or two
       | margin of error one way or the other any time I read it--almost
       | completely defeating my reason for wearing a watch in the first
       | place.
       | 
       | For a while I wore a solar-powered Casio that self-adjusted every
       | morning using the NIST atomic clock radio signals, and the peace
       | of mind knowing that my watch was always accurate was such a
       | pleasure in comparison. It was kind of cheap build quality and
       | eventually fell apart, but I don't think I'll ever go back to a
       | mechanical watch again after that.
        
         | alpaca128 wrote:
         | Accuracy can vary a lot even within one price segment. My Seiko
         | 5 was pretty inaccurate too, while my current watch cost 30
         | bucks more and has less than 3 seconds deviation per day. So I
         | set the time once every 1-2 months and that's perfectly fine
         | for me. But it's definitely not the most practical tech.
         | 
         | > almost completely defeating my reason for wearing a watch in
         | the first place.
         | 
         | Maybe it's just me but I don't need perfect accuracy on a
         | wristwatch. If one minute more or less matters I'm already too
         | late anyway.
        
         | shimonabi wrote:
         | I'm the same. I had several Seiko 5 watches in the past and
         | even modded one of them with a hacking mechanism. I would
         | monitor the accuracy every week with a timegrapher app on the
         | phone and try to make small adjustments.
         | 
         | The convenience of having a modern Bluetooth-syncing cheap
         | Xiaomi fitess watch is so great I don't believe I'll ever go
         | back.
        
         | WillPostForFood wrote:
         | _Half of the time it 's magnetized and running a few minutes
         | fast per day, and the other half (shortly after de-magnetizing
         | it)_
         | 
         | Wow, that's bad. Do you know what is magnetizing it? A cheap
         | Seiko 5 should be able to keep time within a few seconds a day.
         | Minutes a day means it is broken. It isn't a just tuning issue,
         | there is something else going on.
        
           | bayindirh wrote:
           | Yes, it sounds a degaussing and calibration. My simple Seiko
           | 5 with 7S36C is within +/- 4 seconds per day, and I never
           | adjust it except short-month skipping.
        
             | WillPostForFood wrote:
             | Given that is minutes off even after demagnetizing, makes
             | me wonder if there has been water intrusion, or it is old
             | and the oil is starting to gum up.
        
               | bayindirh wrote:
               | Seiko 5s have clear back covers generally, and a water
               | intrusion should be pretty visble, in my opinion.
               | 
               | Oil age maybe a factor, but maybe it's dropped? I had a
               | Swatch with an ETA movement (with shock absorption
               | nonetheless), and I somehow managed to damage its balance
               | wheel assembly by dropping to a soft carpet from ~80cm,
               | because it started stopping when it was not in dial up
               | position. They even opened it and recalibrated and oiled
               | it, but it's dead.
        
               | ce4 wrote:
               | Put it one a timegrapher and check amplitude, beat rate &
               | beat error in different watch positions (watch dial up,
               | dial down, crown up, crown down etc.). There are
               | timegraphing apps on the iOS/Android app stores (using
               | the microphone for detecting beat signals) for a very
               | quick test. The watch's tick signal may be a bit on the
               | weak side but i usually get some data in a reasonably
               | silent environments with direkt contact of the watch to
               | the phone's body.
               | 
               | https://en.wikipedia.org/wiki/Watch_timing_machine
        
               | encom wrote:
               | Can you recommend any (Apple or Android). A quick search
               | on the Apple store only returned things that looked
               | scammy or terrible.
        
         | drivers99 wrote:
         | I also got really into learning about watches and watching a
         | watch repair stream on twitch (in 2020), and I even pulled out
         | my great-grandfather's pocket watch from the 1890s and got it
         | serviced/repaired (or at least running again for a while but
         | now it won't run again; I suspect the person I took it to
         | didn't do a great job).
         | 
         | When it came to buying a watch for myself I also ended up also
         | getting a solar powered Casio with NIST synchronization
         | ("Waveceptor"), the type with hands (for the looks). I love the
         | idea that it's technology without software updates or battery
         | changes (hmm, does the battery you charge with solar wear
         | out?), and always keeps perfect time to the second without any
         | effort on my part. This one (price seems a lot higher than
         | before):
         | https://www.casio.com/us/watches/casio/product.WVA-M640D-1A/
         | 
         | Somehow, watching all those meticulous adjustments to make sure
         | the mechanical watches kept good time made me prioritize that
         | to the point I didn't even get a mechanical watch.
        
         | jerlam wrote:
         | Even though my mechanical watch wasn't as inaccurate as yours
         | (mine was only a minute or two off a week), the act of
         | regularly adjusting it to match the true time slowly changed my
         | impression of it from a "serious timekeeping device", the image
         | cultivated by marketing, into "this is a silly hobby for people
         | who have too much time and money". Doubly so when you look how
         | much it costs to repair a mechanical watch.
         | 
         | This single-use timekeeping device was literally the least
         | accurate timekeeping device on my person, compared to my phone
         | and computer.
        
           | aredox wrote:
           | It's also the only timekeeping device that will still work
           | after three days away from an electric plug, and the only one
           | you would wear _all you life_.
           | 
           | 1 second/day is 10 PPM. Reaching that accuracy with only
           | mechanical means in a device small and robust enough to be
           | worn on the body is something to admire, not to fault for its
           | limits.
        
             | bpye wrote:
             | Digital watches also exist, last years on a single cell and
             | some have a solar cell to extend that. A cheap Casio F-91W
             | is accurate to 1 sec/day and I imagine you'll find others
             | that can do better.
        
               | bookofjoe wrote:
               | https://www.walmart.com/ip/casio-casual-black-resin-
               | digital-...
        
             | jerlam wrote:
             | I replaced my mechanical watch with a G-Shock that lasts
             | ten years without charging of any kind. Even my current
             | Garmin will last a week when charged - it will last even
             | longer if I turn off every single feature.
             | 
             | I use the Garmin to track my exercise - I don't care if the
             | mechanical watch will last all my life if it doesn't do
             | what I want it to do, and it's not even that great at the
             | one thing that it does do.
             | 
             | There aren't a lot of normally-priced mechanical watches
             | that get 1 second/day accuracy. That precision can be
             | admired in mechanical watches, but as I said, it becomes a
             | fun expensive hobby.
        
             | ska wrote:
             | > It's also the only timekeeping device that will still
             | work after three days away from an electric plug
             | 
             | Quartz watches go years on a small battery, and keep better
             | time.
             | 
             | Sure, it's admirable engineering, it's just most obsolete.
             | And that's ok!
             | 
             | The role of watches as jewellery has kept mechanicals going
             | far more than practicality.
        
             | epcoa wrote:
             | "It's also the only timekeeping device that will still work
             | after three days away from an electric plug"
             | 
             | https://en.wikipedia.org/wiki/Quartz_clock
             | 
             | Lasting years on a battery is easy.
        
               | poooogles wrote:
               | Why not both?
               | 
               | https://en.wikipedia.org/wiki/Spring_Drive
               | 
               | Advertised at +-15 seconds a month, but in reality it's
               | much better than that.
        
             | panopticon wrote:
             | > _It 's also the only timekeeping device that will still
             | work after three days away from an electric plug_
             | 
             | I get your point, but I can easily get >2 weeks out of my
             | Garmin Fenix or over a month if I put it in battery saving
             | mode.
        
               | aredox wrote:
               | It won't do that in 5 years, let alone 10. You'll be
               | unlikely to find a replacement battery, too.
        
           | 93po wrote:
           | People (including myself) often wear mechanical watches
           | because they really enjoy the engineering/history/whatever of
           | mechanical movements. To me, I enjoy getting to wind my
           | watch/set the date and time/have a reason to interact with
           | it. I enjoy that it's a conversation starter for some people
           | (hey, nice watch!) and for others it's an opportunity to talk
           | about something I enjoy. It's also nice that it's
           | aesthetically very pleasing compared to a random seiko or
           | electric watch.
        
           | eggy wrote:
           | Well, when the collapse happens and you have no batteries,
           | satellites, etc., you can use the stars[1] to tell time and
           | reset your mechanical watch to within a reasonable estimate
           | given the circumstances. I own a relatively cheap mechancal
           | watch I adjust every week. I bought a Garmin vs. an
           | Apple/Samsung watch too. My Garmin battery lasts about 20 to
           | 24 days depending on how I use the watch vs. 24 to 48 hours.
           | It does more than I need, but has come in handy in my line of
           | work.
           | 
           | [1] https://www.timeanddate.com/astronomy/tell-time-by-
           | stars.htm...
        
         | LegitShady wrote:
         | I own a cheap seiko 5 as well. It's basically so close to
         | perfect you need a specialized device that measures its error
         | to a ridiculous degree to figure out its running slightly fast.
         | It's like average 3 point something seconds a day.
         | 
         | There's something wrong with your watch.
        
       | rounakdatta wrote:
       | It's almost about time that Bartosz releases his next
       | illustration, excited!
        
       | allsunny wrote:
       | There's no doubt that smart watches offer way more functionality
       | than a mechanical watch which is appealing to most consumers.
       | However, what you're buying with mechanical watches is more a
       | form of art these days, and, for certain watches (eg Rolex) a
       | status symbol. As someone who has always been drawn to watches
       | (of all kinds), I really enjoyed this article. I even took off my
       | watch (Omega Planet Ocean) and peered through the exhibition case
       | back to take a look at the balance wheel and double barrels.
       | Thanks for sharing!
        
       | ktt8788 wrote:
       | Fanstastic animations!
        
       | ktt8788 wrote:
       | Fantastic animations!
        
       | denton-scratch wrote:
       | A beautifully made web-page, fitting for a watchmaker. Lovely
       | animations. I'm impressed!
        
       | KaiserPro wrote:
       | There are semi-electric versions of mechanical watches based on
       | "tuning fork" movements. They are cheap and accurate, and are a
       | stepping stone between mechanical and quartz from the 60s/70s
       | 
       | I don't have the skills or machinery to make a wristwatch sized
       | version, but I did make a _big_ sized version:
       | https://www.secretbatcave.co.uk/projects/electromechanical-c...
        
         | aidenn0 wrote:
         | For a clock, could a worm drive provide the necessary reduction
         | without the microscopic teeth? Tamiya sells small drives with a
         | 150:1 reduction ratio.
        
           | dexwiz wrote:
           | I imagine the increased surface area of the worm drive may
           | cause more loss to friction than desirable.
        
           | KaiserPro wrote:
           | Possibly, its less the reduction, more the "stroke" of the
           | vibration (ie how far the tuning fork moves backwards and
           | forwards.)
           | 
           | I think for a large tuning fork, you _could_ use normal watch
           | gears. However I don't have the skill to try that, yet.
        
             | aidenn0 wrote:
             | That makes sense; the backlash needs to be much less than
             | the tuning fork travel, right?
        
               | KaiserPro wrote:
               | Backlash isn't probably that much of a problem, the
               | orignal movement has a locking "pall" that stops
               | backlash: https://youtu.be/CPS7aNCAwAA?t=161
               | 
               | scaling it up you'd get something like this:
               | https://www.youtube.com/watch?v=u48n-jvo5N0
               | 
               | to make it practical on a tuning fork, that movement of
               | the forks would need to correspond to the tooth size of
               | the wheel. For a large tuning fork, its probably in the
               | order of mm, so not beyond home shop manufacture
        
               | aidenn0 wrote:
               | A ratchet and pawl limits the backlash to the distance
               | between the teeth on the ratchet gear; think of it this
               | way; if it were to turn less than the radial distance
               | between the teeth on the ratchet gear, backlash could
               | still happen; similarly in regular operation, it turns
               | the ratchet gear slightly more than that distance, and
               | there is backlash until the pawl engages.
        
       | Aaronstotle wrote:
       | I have an Oris Aquis Date that I purchased for myself a few
       | months ago, I love looking at the flywheel movement and hearing
       | the tick when I put it up to my ear.
        
       | nicholasjarnold wrote:
       | Hugely popular original posting of this -
       | https://news.ycombinator.com/item?id=31261533
        
       | m3kw9 wrote:
       | Hard to beat this for explaining how a mechanical watch really
       | works
        
       | g9yuayon wrote:
       | This reminds me of Dave Sobel's book Longitude, which tells a
       | fascinating story on how John Harrison created the first reliable
       | marine clock. Such stories humble me and make me deeply
       | appreciate the ingenuity of mankind to conquer the seemingly
       | impossible challenges to build the civilization we enjoy today.
        
       | nobulus wrote:
       | Great article!
        
       | jstanley wrote:
       | My project at the moment is to try to make a mechanical watch.
       | 
       | The concept is that it will only have one hand (the hour hand),
       | and the mainspring barrel will encircle the entire movement,
       | you'll wind it up by rotating the bezel (and therefore the outer
       | part of the barrel) clockwise, and the mainspring will drive the
       | inner barrel clockwise. The hour hand is mounted directly on the
       | inner barrel (which therefore completes 1 revolution per 12
       | hours), and the rest of the movement only exists to regulate the
       | speed at which the inner barrel rotates. So the rest of the
       | movement will be a series of gearings-down, with an escapement at
       | the end.
       | 
       | And to set the time, the movement will be mounted into the case
       | with a ratchet, such that when you turn the bezel _anticlockwise_
       | , the entire movement (and therefore the hand) rotates
       | anticlockwise allowing you to set the hand. You'll only be able
       | to set it as precisely as the ratchet (i.e. you'd need 720
       | positions of the ratchet to set it to 1-minute precision), but
       | the watch will never keep particularly good time anyway so I
       | don't think this is a problem.
       | 
       | Yesterday I got an escapement at almost-watch-scale ticking for
       | the first time, albeit erratically and requiring enormous drive
       | torque: https://www.youtube.com/watch?v=xvNODOp6uBc (3d printed
       | for expediency, the real one will all be machined; and I say
       | "almost-watch-scale" because although it fits inside the 50mm
       | diameter that I am aiming for, it is obviously too thick to go
       | inside a sensible watch).
       | 
       | I have more info in this post:
       | https://incoherency.co.uk/blog/stories/the-watch-project.htm...
        
         | knodi123 wrote:
         | wow, that's really impressive for 3-d printed and being built
         | from first principles!
        
       | fuzzfactor wrote:
       | Looking at drawings 3 & 4, these linear vs rotational springs are
       | analogous considering they are each at rest in the center of the
       | user control slider. They can act like a spring in either
       | direction, and are basically sitting there in the neutral or non-
       | energy-storing condition (zero-sprung or zero-wound respectively)
       | until you move the slider away from the center position.
       | 
       | Take a look at the 9th or 10th interactive drawing, where you can
       | move the slider to the right to wind the mainspring, then release
       | the slider to watch the mainspring unwind.
       | 
       | When the energy is depleted, all the bands in the coil are
       | bunched up around the outside of the barrel. It's not much of a
       | spring any more.
       | 
       | This is the same type of torsion spring as in drawing 4 but with
       | the mainspring being used for primary energy storage there is no
       | desire for recovery to a neutral position from both clockwise &
       | counterclockwise directions like you see in drawing 4. Instead
       | you only need to ever draw energy from storage to use in a single
       | rotational direction. Opposite rotation is used only to store
       | externally applied energy.
       | 
       | So you wind it in one direction to store energy then it releases
       | the energy in the opposite direction.
       | 
       | But without the precurvature shown in drawing 11 the torsion
       | spring would tend to be exhausted when it was "zero-wound" like
       | the one in drawing 4, with the coils widely spaced away from each
       | other, free to absorb & recover energy from either rotational
       | direction. And since we only need to draw energy in one
       | rotational direction, that amounts to only half of the energy the
       | spring is capable of storing for our purposes. Notice how about
       | half the length of the spring is coiled similarly to drawing 4,
       | with the upper half of the loose spring coiled less tightly and
       | in the opposite direction.
       | 
       | Because when our mainspring is exhausted, we want it to be
       | bunched up along the outside of the barrel so we get the most out
       | of it before it needs to be retensioned. And when it's fully
       | retensioned we want to get maximum energy storage from the
       | hardware so at that starting point we want the coils to be tighly
       | wound, bunched up around the arbor.
       | 
       | But not too tight.
       | 
       | Or it could be _overwound_.
       | 
       | As long as there is some space in between the coils, when
       | recovering rotational energy you have access to what is stored
       | along the entire length of the free portion of the coil. But once
       | it's wound tightly enough for the coils to be in significant
       | direct concentric contact, the free portion of the coil becomes
       | so small it does not contain enough energy to drive the
       | timekeeping mechanism.
       | 
       | It could get so tight that it's not much of a spring any more.
       | Closer to a solid cylinder with a slight tab hanging off.
       | 
       | Which is more of a problem when both ends of the torsion spring
       | are permanently attached to their substrates.
       | 
       | Instead in these drawings, the color-coded _metal strip_ is used
       | to provide a friction grip between the outer end of the coil and
       | the barrel, strong enough grip to drive the timekeeping mechanism
       | but designed to slip counterclockwise within the barrel if manual
       | winding proceeeds more than necessary, slipping before the coil
       | can get wound too tightly.
       | 
       | Basically, overcharge protection for a non-electric hardware
       | device.
        
       | asylteltine wrote:
       | This guys blog is crazy how does he have the time and knowledge
       | to make all these intricate animations
        
       | incahoots wrote:
       | Did anyone notice the animated example was giving the proper real
       | time, right at the precise second too.
        
       | vietvu wrote:
       | Damn, when I decided that I don't want a mechanical watch
       | anymore, you convince me otherwise with this.
        
       | bvan wrote:
       | These animations are just phenomenal - best I've seen by far.
        
       | redbell wrote:
       | This is the type of content that never gets old.
       | 
       | The original post [1] was ranking #4 as the highest-upvoted story
       | on Hacker News before it got kicked to #5 last August by Bram
       | Moolenaar's death announcement [2], then to #6 after Altman's
       | saga ranked #3 a few weeks ago.
       | 
       | Over all, this story is classified as #1 in creative content that
       | is not in the genre of news or announcements.
       | 
       | _____________________________
       | 
       | 1. https://news.ycombinator.com/item?id=31261533
       | 
       | 2. https://news.ycombinator.com/item?id=37011324
        
       | mikestaub wrote:
       | Bitcoin is like a virtual Swiss watch, with the base layer being
       | the center wheel and PoW mining being the mainspring. The third
       | wheel is the BIP300 protocol and the fourth wheel is LN and other
       | L2s. The nodes are the balance wheels.
       | https://youtu.be/9_QsCLYs2mY
        
       | aswinmohanme wrote:
       | I bought a mechanical watch after reading this blog post and it's
       | been my daily driver since. It always brings a smile to look at
       | it and see what fine craftsmanship and mechanical intelligence
       | can achieve.
        
       | lldoraMay wrote:
       | Diving into watch repairing? It's like the DIY version of a
       | puzzle game - tricky but super satisfying. Hats off to the
       | internet for turning casual viewers into budding horologists. And
       | for those who just enjoy restoration blogs, it's cool to be a fan
       | without getting your hands dirty. As for beginners seeking an
       | easy start, a watch repair simulator game sounds like a fun,
       | stress-free way to dip your toes in. Whether you're a hands-on
       | tinkerer or a digital-only enthusiast, every tiny screw and
       | spring brings its own adventure.
        
       | waltwalther wrote:
       | I worked at a local-owned jewelry store for years (starting out
       | as on-call computer guy). The kind with an old fashion in-house
       | jeweler who did all repairs himself (setting stones, resizing
       | rings, cleanings, etc). We did everything EXCEPT most watch
       | repairs. We changed batteries in the quartz watches, and replaced
       | and repaired bands, and performed some minor repairs of
       | mechanical watches, but we sent out most watch repairs to a
       | watchmaker several cities away.
       | 
       | The boss, who was an old jeweler who had started out in the
       | business as a boy in the fifties working under a jeweler and
       | watchmaker, always said that watchmakers are a dying breed, and
       | could pretty much name their price.
       | 
       | When I started working and learning the trade we had two
       | watchmakers that we shipped to. Within two years one of those had
       | retired, and we were unable to find a replacement for him.
       | 
       | I loved working and repairing jewelry (even more so that my
       | fulltime job in IT for local gov), and wanted to become a
       | watchmaker, but my life took me elsewhere. Now that I am older
       | and in a better place in life I often think of those three years,
       | and have been considering obtaining the tools to start up a hobby
       | in one or the other...or both.
       | 
       | Thank you, OP, for an awesome post and link.
        
         | hotpotamus wrote:
         | Like any hobby, there is a YouTube culture around mechanical
         | wristwatch maintenance/repair these days if you want to learn
         | more. If I remember correctly, there's a channel called
         | Wristwatch Revival that is quite good.
        
       | yolkedgeek wrote:
       | OMG this was such a beautiful and interesting article. I was so
       | impressed I HAD to leave a comment
        
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