I used to cynically think that things breaking down over time was mostly a choice for built-in obsolescence. After doing some real physical product design though, I can say that it's really difficult to build things to last.
It’s also really hard to make things that last at least X long but hardly event more than Y. I know an engineer who spent two years of his life making sure the new water pump designs would fail at warranty + 50 percent, but only in an annoying, non catastrophic way.
Also, plastics that last very specific amounts of time are common in specific pieces of assemblies in mechanical timers for refrigerator defrosters and the little crossbars that tie the vanes in air vent directors together.
Replacement timers use all nylon gears and last “forever”.
The one I personally uncovered is a Honeywell thermostat. It is a direct replacement for a mechanical thermostat that would frequently fail about 10-15 years out due to corroded/pitted contacts. The all electronic replacement does not have this problem, but they still failed around 10 years out, but with remarkable predictability in my friends apartment complex.
I reverse engineered one. It is powered by the 16-24v signal line. It uses a simple potentiometer to set the temperature, no clock, memory or other features. It has a battery soldered on the circuit board. The battery slowly discharges while the unit is on. In about 10 years of operation, the battery voltage drops below 1v or so. The battery powers nothing, but the microcontroller senses it’s voltage and when it is too low, it changes the behaviour of the thermostat to randomise the temperature cut in/out points by about 10 degrees Fahrenheit , making the thermostat annoyingly unpredictable in a way that is very similar to the typical failure mode of the old thermostat it replaced.
One notable difference is that the electronic one will never fail (unless it is in the off position) to come on at 45F or lower, preventing the programmed random behaviour from provoking a freeze-up and damage to structures, so I guess that’s nice?
+1 on this. I don't think I've read a story about how planned obsolescence is achieved in such a novel and non-plausibly deniable way. By that, I mean they haven't just cheaped out on materials, they've spent extra to make it fail predictably.
> The battery powers nothing, but the microcontroller senses it’s voltage and when it is too low, it changes the behaviour of the thermostat to randomise the temperature cut in/out points by about 10 degrees Fahrenheit , making the thermostat annoyingly unpredictable in a way that is very similar to the typical failure mode of the old thermostat it replaced.
This should be criminally investigated and the person who ordered it be put in prison for at least a decade.
I think it would be best to focus on the deterrent effect for the future: we need a law that makes this business strategy not viable. Not on punishing bad behavior that already happened. Maybe such law already exists, but we need more enforcement. Or a better thought out law.
I don't think it's important if _that_ person gets jail time. I would not particularly rejoice at the news. But if somehow this practice was made impossible or impractical, I'd
One of the reasons for punishment is deterrence. It it becomes clear people consistently go to prison for doing something like this that will reduce the likelihood of people doing this in the future
I was in film school in the mid 00s, when RED was just starting to sell digital cameras to Hollywood studios. I remember a lot of my professors being concerned that we'd lose the archival properties of cinema - you can play back a 100 year old movie with a bright light and a ratchet - the same stuff you need to play back a movie from the 90s. They were concerned there'd be too much churn in digital formats.
Just this weekend, I saw a headline that the Looney Tunes box set I bought then probably doesn't work anymore, because Warner Bros used crappy materials to mint the DVDs and people have had them degrade beyond playability.
Film wasn't always perfect either. A lot of early, pre-1950s cinema has been lost because the old nitrate film stock degrades over time. And can catch fire.
Thing is, those old films will eventually degrade too unless very carefully maintained. I don't think there's realistically any storage format that doesn't degrade over some period of time. Even things carved into stone will weather away over time unless somehow protected.
In an interesting way it's almost that human memory is the most durable format -- as long as we remember to care for and preserve information, we can keep it around as long as people are around; But once people stop caring about it, eventually it will fade.
The word unless is unfortunately superfluous in your statement. David Fincher just went through a grueling restoration process for Seven, and he talked about the process and basically said: Eastman Kodak has spent a lot of money to convince Hollywood that if your shoot on film and keep it in a vault that it will never degrade. It’s false.
DVDs use organic layer for data storage (that rainbowy part IIRC). There is no way in chemical reality that that layer can last more than 2-3 decades, apart from very few outliers. I'd say half-life is somewhere around 15-20 years from what I've witnessed.
If you have anything worthy still on DVDs that still works, make a backup to keep it.
If done correctly a ~35 year old Laserdisc's glue layers are still fine. This depends on the plant and when the disk was produced, but Pioneers plants were quite good by the late 80's.
Most 1980's CD's are still fine, except for ones made by PDO UK.
I'm not sure if the glue layers in DVD are organic or not, but I think the rainbow part itself is aluminum.
I recently found an old spindle of DVDs that I burned a while ago, mostly with booty gathered from sailing the seas, if you will. I had a 100% success rate with guessing which discs would be unreadable just by looking at them -- the recording layer had degraded so much over time that it was apparent to the naked eye.
Luckily this was all stuff I had no issue with discarding, but if those discs had contained anything of sentimental value, I'd have been quite upset to find that they were basically useless now.
> If you have anything worthy still on DVDs that still works, make a backup to keep it.
And make sure to make it to multiple other formats, preferably including some sort of cloud storage. Solid state storage, especially modern small portable drives, are great if you use them often, but if you're planning to just copy stuff to them and leave them sitting unpowered for a long time, you should be aware that over time they too will suffer from data corruption. The charges in the storage cells don't leak fast, but they do leak.
You gotta actively maintain your backups, even if that just means plugging the backup drive in every other month to check its' health.
Having a non-user replaceable battery is a really easy way to ensure a product stops working after 3-4 years though.
And the criticism is typically directed at companies like Apple, who does make things that last physically, but then force you to upgrade by way of battery.
Both can be true: planned obsolescence is real, but building things to last is difficult too.
IMO the durability problems in early generations of products tend to be "real", because there are still real engineering problems that aren't understood, and there isn't (generally) a super limited market. Once the engineering problems are solved and the market is fully saturated, there is suddenly an incentive to add planned obsolescence. I don't have any data to back up this claim though.
If you have a product that's been in the market for a while and it looks like it's meeting service life expectations you start looking at it trying to find ways to save money by substituting cheaper parts. You swap out metal gears for plastic gears, for instance.
If these parts have a shorter service life, but the service life is still longer than the warranty, then maybe that's a win in two ways for the manufacturer.
> You swap out metal gears for plastic gears, for instance.
Great, till the motor that drives the gears jams. When the gears are metal,the expensive part (the motor) is more likely to lose. When the gears are plastic, the motor survives and you need to replace the gears with nylon ones or 3D print your own.
The plastic gears may not always be designed as a sacrificial part, but most consumers unfairly dismiss the possibility immediately
This comes down to warranty too. If it fails during the warranty period, which one does the OEM want to pay to replace: the expensive motor, or the cheap gearing?
I think of it as a continuous feedback loop between engineering, finance, and QA that ultimately ends in a product being manufactured as inexpensively as possible without dying in the warranty period.
Wow that's super interesting! I've never heard of this, but the appeal is immediately obvious. Thanks for commenting, gonna have to do a Wikipedia binge.
You're never really forced to upgrade because of battery. If you don't want to get Apple to replace it (which though expensive is still much cheaper than a new phone), then you can take it to your local phone repair shop which will do it for not much more than the cost of a replacement battery.
> the screen is maliciously connected to the board with strong adhesive
That’s not necessarily malice. Using lots of glue makes the device stronger, and making glue that a) glues really well (if there’s as good as no bezel, how is the screen staying attached to the phone otherwise?), b) lasts for years in any climate and c) can be easily removed isn’t an easy problem.
In any case, all it takes to repair a phone with a glued screen is a two face suction grip for about 20 dollars and an ordinary hair dryer.
The nasty part of a phone repair, I will admit that, is scraping off the glue gunk - I had to repair a Google Pixel once where the battery was dead, and during removing the glue on the display unit border I apparently managed to damage the seal between the OLED display and the glass, exposing the OLED to oxygen which led to eventual oxidization and a new display panel.
It’s fairly easy to open. They designed it so a cheap and inexperienced worker in the Apple Store can replace the battery quickly and without issues.
They also made a massive improvement by designing an adhesive for the battery that detaches with electricity. So you no longer have to use pull tabs or heat.
But unless you spend the effort to personally test those 2 cent more expensive parts, how do you know you are actually getting more for your money until after your or your customer's shit is broken? Even if you do test it, you might need to retest those same parts a year or two down the line as either your suppliers equipment wears down, or the skimp on QC more over time, or if they just outsource it to someone else as a middle man. There is a lot of room in there for people to get fleeced because everybody is playing the same game all the way down the line to the hole they dug the minerals out of.
That's not a 'saving 2 cents problem', that's a failure to recognize the thermal environment and requirements for a component, which is kind of my entire point: engineering isn't easy.
The 6 cent capacitor is more durable and can absorb an error like that without the product failing.
Like they say that anyone can overbuild a bridge but only an engineer can make it barely stand up. A lot of that cost cutting is useful but it tends to go too far.
>Like they say that anyone can overbuild a bridge but only an engineer can make it barely stand up
The majority of biggest suspension bridges if I remember correctly are barely standing up. They use above 80% of the cables carrying capacity for themselves.
Your CEO will be very upset when they find out that their probable bonus is used on "useless" capacitors, 2 cents at a time. Instead, you should use 2 cent capacitors and pay him the rest for the ingenuity. /s
Obsolescence doesn't exist because a comically evil mastermind designs things to break. It exists because capitalism favors profits over anything else.
A lower quality component is cheaper than a higher quality one that would last longer, so that's what ends up being mass produced, and that's what you, as a product designer with no power over the entirety of the production pipeline, has to work with.
It might if there was an actual reliable correlation between the price of a product and its longevity. But many times the shittiest products will slap on some marketing materials about it being extra heavy duty or something, or design it to appear like a more reliable competing product, but charge more for it. I buy the cheapest parts not because I want the cheapest parts, but because spending an extra 20% on the price often results in the exact same part with zero extra value.
People have typical shelled out significant more money for Miele washing machines because they were known to last typically up to somewhere between 1 and 2 decades and be repairable.
People pay a lot extra for Toyota.
I don't want to pay extra for my pants to last at least a full year (think 100 days use, 30 wash cycles), or for my electronics to last at least five years since I am old enough to remember that this used to be absolutely normal and the way things used to be.
And part of this is because it's very difficult for consumers to measure this, especially as even the best brands experience enshitification. Sears' Craftsman tools famously had a lifetime warranty, but capitalism eventually did its thing and outsourced their manufacture and removed the lifetime warranty, hoping to leverage years of good will for a short term gain.
They also started putting plastic gears in their gas powered stuff. No bearings, just bushings in the shaft. Crap like that.
All these companies some of us remember are all now owned by the same company. This is how capitalism goes. Eventually, a company makes a mistake, and a competitor will absorb them.
This is dramatically simplified, but the big joke is that capitalism breeds competition and that is good for the consumer.
The illusion of choice via mergers and acquisitions.
You are assuming that a product designer needs the product to last as long as possible given our current knowledge of physics, chemistry, engineering, and manufacturing at the moment. Most of the time, that's just not necessary. Things break, and if you can make some money off of them before they break then we can keep the cycle going. Customers would happily spend the same amount of money again after some time if they expect an improved product (for proof, see every subscription service).
Spending time in a company that designs and manufactures real products will cure anyone of this conspiracy theory. There’s probably an exception for companies that don’t have any warranty and don’t have to suffer returns (e.g. the stuff you buy from Temu). Any company that has to build a reputation and suffer the economic consequences of warranty claims will not be doing anything to intentionally make their products break down over time.
Once you’re close to the engineering side of physical products you also realize how hard it would be to make products that break down precisely after the warranty period is up. Most failure modes get spread out over a very long time (years/decades). Attempts at intentional obsolescence would start cutting into your warranty period very easily.
The argument is, cheapening your products to break after the warranty expired is sufficiently hard that it would result in plenty of products breaking before the warranty expires.
First, you're not blind - you can test your product to see what the "plenty" is.
Second, many components have rated use, so it's easy to estimate mean time to fail and pick the one beyond the warranty period with whatever buffer you like. It's not like you need seconds level of precision here!
The level of consideration matches the level of argumentation, e.g., it's obvious you failed in your interpretative nitpicking on the word "mean" and think "reading about the normal distribution" means anything in this context.
Please design a physical product to reliably fail after a specific and precise amount of time (not usage, because that’s easier and not what you’re arguing), then come back and describe how easily you accomplished that feat. Everyone reading this thread who has worked in device design knows that your assertions are completely and utterly misguided.
Right after you explain how in this imaginary world of 0 knowledge where you're not even capable of translating usage into time companies set a warranty to 3 years (>legal min) instead of 13; and why there are warranty limitations for heavy use.
(and no, you don't need "reliably ... specific and precise", those are just artifical constraints you've added)
And don't speak for everyone, not everyone is so clueless re. business decisions just because they've designed some hardware.
I think the point is that Hanlon’s Razor applies here. Though there are definitely cases like this, I’m not sure how one could prove that the penny-pincher was intentionally oblivious to the damage from failure.
I agree with your overall sentiment, but I can't help but feel that when companies offer single-year warranties it's because they haven't put in the engineering to keep the failure rate down over what's actually a reasonable-for-the-consumer lifespan for the product.
The cost of improved quality still need only offset the cost of returns within the warranty period and opinion on reasonable product lifetime though. At some point the cost of better quality will be greater than the profit margin a company is willing to accept and a consumer is willing to pay, but it’s in the companies best interest to get that as close to a number that passes the pub test (e.g., an ‘untentional’ bug bricking the firmware the day after warrantee expires)
I’m not convinced some of my very expensive smart products aren’t intentionally degrading over time, given fw is introducing more functional bugs.
When peoplespeak of planned obsolescence, they're discussing how companies pay the bare minimum to make a part that functions within the warranty period. They aren't doing it to fail the part prematurely, they'd doing it to pinch pennies in the manufacturing costs.
Do you think the fact that new cars have engines that are not rebuildable but only replaceable is just a coincidence? With every year car manufacturers get more insight in how and when things break, thus allowing the use of more plastic parts in the engine bay
Almost any car can go 200,000 miles these days and exceptions (Hyundai/Kia engines, Nissan transmissions) are well known and excoriated.
Pre OBD2 cars just didn’t do that. 100k was a significant milestone for the life of the car. Today, it’s a preventative maintenance milestone.
Shitty plastic parts aren’t a feature of modern cars, just lousy companies. I had a 1991 Dodge Spirit in college and high school that had a little plastic part in the distributor that broke when it got hot.
When it did, the car would just stop if you hit a puddle or turned right quickly. It did so enough that I kept two spares in the trunk. One time the car died on the ramp from the GW Bridge to the West Side Drive. I just stopped on the ramp and fixed it, pissing off hundreds of people in the process.
Great story. The GW bridge is one of the most stressful driving-in-city-you-don’t-know-well experiences I’ve ever had. We were literally shouting at google maps as it blithely delivered nonsense while we were surrounded by cars who wanted very much not to let us change lanes.
>Almost any car can go 200,000 miles these days and exceptions
Doubt that
>Pre OBD2 cars just didn’t do that
In Eastern Europe, if the car has 200k-300k km on the odomoter, it only means one thing - the odometer is turned back. Pre OBD2 doing 500k and up is pretty normal here.
>little plastic part in the distributor
Distributor was always plastic, afaik. I'm talking about plastic water pumps on the new BMWs
The Bureau of Transportation indicates that the average age across the board for vehicles still on the road is just over 11 years according to Autotrader, and the average may be approaching 12 years. Standard cars in this day and age are expected to keep running up to 200,000 miles, while cars with electric engines are expected to last for up to 300,000 miles."
It's not a coincidence - new cars have turbochargers and electronic engine control that provide huge performance/efficiency gains and necessarily are harder to repair.
Your average shitty 4-banger from the 80s or 90s is not remotely comparable to a new engine - in almost every respect (including reliability!) the new one is better.
While we are at it, I want companies to disclose that a brand is made with cheaper ingredients or meets a lower quality expectation. Can think of some loopholes myself though.
A lot of depends on where your price point is. Do you compete with Temu or do you sell expensive things. People rarely expect cheap things to last, but if you don't compete on being the cheapest, than the product is expected to be made to last
A similar thing happened to my Brother laser printer. It has a tiny rubber piece inside that serves as a bumper to quiet down a component that clicks while the paper travels through the printer. Over time, it gets sticky and winds up holding the component too long, which confuses the printer into thinking it has a paper jam, causing it to suddenly abort the print job partway through. The fix was to simply remove the rubber pad and it was back to normal -- albeit a little "clickier" than when it started!
Same kind of problem with an old HP LaserJet 1300 we still use. It began by it occasionally picking up multiple sheets of paper and jamming. It gradually got worse until the printer wasn't usable anymore.
The issue turned out to be the solenoid for the pick-up mechanism. When activated it should cause the pick-up mechanism to turn once. The solenoid once apparently had a small rubber pad to reduce noise. This had turned into goo and the solenoid would stick causing the mechanism to turn multiple times.
Fixed by removing the left-over goo and a piece of tape. Ten minute fix.
I had the same problem when my previous Brother printer was nearly ten years old, I did the same trick, and it worked. Most components might last almost forever, but things like rubber or glue, not so much.
I had forgotten about Quantum hard drives.. I bought a Quantum harddrive in the 1990s for my mac like "Tower Power Pro".. It stopped working about a week after I got it with clicks. The first clue something was amiss was the person on the phone stating "thats a little early for it to fail". Got a replacement drive... 2 weeks later same issue. I think they were bought out by someone.
As I get older I wonder how may of my burned DVDs will still work.. My MiniDiscs still do as of this fall when I dusted them off (different technology). I had heard of tv networks "baking " magnetic tapes to get the information off.[1]
https://en.wikipedia.org/wiki/Sticky-shed_syndrome
I bought a 50MB (yes, megs) Quantum HD from an acquaintance. It was freaking slow connected to my Amiga, like 20-30KB per second. It also made a horrible high-pitched whine.
Figuring I had nothing to lose, I turned it over and squirted some 3-in-1 oil on the motor spindle. The whine started increasing in pitch as it quietened, and slowly the HD benchmark program started creeping up toward a more reasonable 1MB/s or so. I didn't use that drive afterward, and just copied the, ahem, public domain apps and games off it and then threw it away.
I have not before or since sped up a computer by oiling it.
That's why I've decided that my next mouse won't have any rubber in it, but it's difficult to find a good mouse without rubber. I'm still looking for one.
Generally, I try to avoid buying anything with rubber. It is usually the first part that goes bad. Either it gets sticky and starts melting or it gets hard and dry and breaks up. Also, I avoid using rubber bands. They usually end up damaging objects they hold together.
In some cases, plastic doesn't either. It will "dry" out and either crack or begin to flake off. I've had plastic gasoline containers where the plastic rings that you tighten down to prevent leakage, simply crack down the sides when trying to unscrew them to get to the fuel, especially in winter time.
This is not to say all plastic is this way, some plastics that are more flexible, like on the gas containers themselves, can last for years. But the cap rings are made of hard plastic.
This morning I replaced the rubber grip on my manual coffer grinder. By my math I'd ground about 40 kg of coffee by hand over 4 years, and the grip had gotten to the point where it just spun around the body of the grinder unless held very tightly.
I assume I could extend the lifespan by wearing gloves when I grind coffee to keep my hand oils off the rubber, but the replacement was only $5.
"Rubber" means lots of different plastics, some of which are very stable and some of which are very unstable. Some are natural; others are synthetic. All they have in common is that they are soft and very elastic—if even that, since sometimes ebonite is called a rubber as well, comprised as it is in large part of natural latex rubber.
Silicone rubbers in particular are extremely stable.
It takes a lot of alcohol. I learned to soak a paper towel and rub it on the sticky stuff with almost no pressure. If it sticks, there is not enough alcohol.
And change the paper towel frequently. It works by dissolving the sticky stuff, not mechanically wiping it off. So the paper towel picks up the dissolved crud after only a few wipes, then switch to a clean one.
I’ve cleaned cameras, mice, umbrella handles, and the back of a Samsung tablet this way.
The most common issue with Pentax ME Super, one of the most popular consumer-grade manual focus SLRs, was caused by a degraded rubber ring near the mirror assembly.
The ones without such an issue is still often recommended for hobbyists who want to get into analog photography today, because they are generally inexpensive, compatible with very nice lenses, and there are so many of them circulating still for parts and repair.
Given that they were made in the late 70s to early 80s, and the shutter mechanism is fully controlled by electronics (instead of mechanical), it's quite amazing that the rest of the camera mostly held up over nearly 5 decades.
Many years ago, I have lost valuable data stored on Sony QIC magnetic tapes (QIC = quarter-inch cartridge), because those magnetic tape cartridges contained a rubber belt that was used to move the magnetic tape inside the cartridges, when they were inserted in a tape drive.
After many years of storage, the rubber belts had become fragile and any attempt to move the magnetic tape turned the belts into dust, making the cartridge unreadable.
The LTO magnetic tape cartridges used today are much more robust, because the cartridge is simpler and it hopefully no longer includes any parts that are susceptible to rapid aging.
At that time, i.e. 30-40 years ago, rubber belts were used because they ensured in a simple mechanical way a constant moving speed for the magnetic tape. Later, the electronic alternatives for ensuring a constant tape speed by varying the speed of an electric motor have become cheap enough to eliminate the need for such belts.
Wow, that was my first PC HDD. (I had a 10MB HDD in my Sirius 1 before that)
Bought at an Egghead somewhere the Computer Museum in Boston while on vacation from the UK -- about half the price of something similar in England at the time due to exchange rate.
I too have fixed (temporarily) a hard drive by opening it open and moving the arm back and forth a few times. I got about 20 minutes out of it. Was able to save some photos… that are stored on another hard drive.
This reminds me of what happens to that rubberized coating that was so popular on plastic peripherals a long time ago. I have a relatively recent Ubiquiti AmpliFi device and it's just...sticky. I can't get rid of the stickiness no matter what I try.
but older hard drives like the ones I’ve shown above are remarkably tolerant of being opened. That’s not to say I would leave it operating without the cover for an extended period of time, but for quick data recovery purposes in a decently clean environment, it’s fine.
The airflow while the platters are spinning keeps dust off them, and as long as particles don't stick and cause excessive "thermal asperity", the heads will still work. The latter is what makes transient bad sectors appear.
Ahhh, Conner. My second computer (a 386sx-33) had a whopping two Conner IDE 120MB drives... until it didn't. I can remember the clicking as those drives would spin up... until one fine day the clicks died and POST threw an error wondering why my hard drive wasn't ready.... and then the drive began clicking again. One soft reset later and I was back in business, but even as a teen back then I knew that was a sign from PC-Hulud to immediately start pulling everything off. I had always assumed the problem was stiction of the read/write head w/r/t the platters. Neat.
I’ve recently got into old typewriters and have had the same problem with the rubbery belt that goes from the motor spindle to the larger wheel that spins the inner roller that drives the keys and returns the carriage. They turn into a very sticky goo, and those exact size belts are not available.
I just found my old Flip Camera in bin of old electronics today and its rubber case was a sticky mess. In the bin is a bunch of old hard drives that haven't been touched in a decade as well. I imagine there is nothing on there I need that hasn't been transferred elsewhere, but also just curious if any of them work.
I'm a bit surprised there was no mention of semiconductors (mostly capacitors?) going bad on 1990's hard drives. I want to rescue the Fast SCSI2 drive on my old Amiga at some point and never thought the problem might be inside. If the electronics on server-quality drives (it sounds like a jet engine) are this reliable, then I'll be thankful for having just one problem and not two.
Do HDDs have many electrolytics? Those are the main culprits for going bad, and are usually used for power electronics, not controllers/processing circuitry (they don't need the bulk capacitance that you'd usually use an electrolytic for)
There are indeed some aluminum electrolytics hiding on Quantum drives. They look sneakily like tantalum caps, but they're just cans hiding inside a plastic cover. Here's one where I accidentally broke the cover, revealing what's underneath:
No reasonable EE would mistake this for anything but an electrolytic cap.
This is a very old package design from the transition between through hole and SMD. The process for making the vertical axial style common now hadn't been perfected and it was briefly cheaper to cast regular axial caps into an epoxy block.
No other component looks like this, it's a very distinct package and footprint from any other type of cap. No one tried to disguise anything, they really just thought this was the cheapest way to make a surface mount electrolytic cap.
It's more likely so these could be used with a pick and place machine. They're obviously lytics if you look at the ends. I don't know why everything has to be a conspiracy these days.
I'd have to pull the drive to have a good look, but my memory is that the circuit board resembles the inside of a 1960's era transistor radio. Will hope you're right.
Dons glasses well etymologically... the "semi-" in semiconductor means "partial", something between an insulator and a conductor. A capacitor is an insulator between two conductors.
(But this approach fails on the temperature coefficient of resistance test: capacitor ESR increases with temperature while semiconductors have a negative coefficient.)
Hm, I have some classic scsi drives still kicking in some old Macintoshes, maybe I aught to back them up. They're funny, sometimes they get stuck and I have to whack them with the rubber side of a screwdriver to start them up.
Hmmm, I wonder if there are similar tricks for newer hard drives. I have a 2010 iMac that has a seized or "otherwise non-booting" hard drive, just randomly wouldn't boot one day. I can only guess there is a mechanical problem like this, because those aluminum iMacs were notorious for running too hot internally and basically overheating the HDD. Same problem on my wife's 2008 iMac, that machine burned through 3+ HDDs due to the heat issue.
I've thrown out an expensive chefs knife this week with a sticky rubber handle.
Also two pairs of boots where the rubber bases have just crumbled. I contacted the manufacturer of one of them because they were a very expensive 'best pair' and had hardly ever been worn. The reply was that boots have to be worn every few months to prevent this, and not covered by warranty. I wonder if all polymers/plastics are like this, use it or lose it. Entropy rebooted.
I've had good luck using bicarbonate of soda as a mild abrasive on knives and saucepan handles with that horrible rubberised soft-touch coating. On good quality items it removes the stickiness. On poor quality items it removes the soft-touch coating, which is still a good result in my book!
Unfortunately rubber deteriorates as it absorbs moisture. I forgot the name of the reaction, but keeping these things in a well ventilated, cool and dry place extends their life a lot.
Another option, if you can’t find a card, is a ZuluSCSI or BlueSCSI V2 in initiator mode to image the drive to an SD card. It’s pretty nifty! I’ve recently even been using ZuluSCSI as a USB-SCSI bridge with USB MSC initiator mode.
I had two hard drives sitting on the shelves just suddenly refuse to work after not touching them for years... Xbox360 hdd went south, a seagate st4000dm000 too. interesting... what is aging in these modernish drives that makes them go south?
I used to cynically think that things breaking down over time was mostly a choice for built-in obsolescence. After doing some real physical product design though, I can say that it's really difficult to build things to last.
It’s also really hard to make things that last at least X long but hardly event more than Y. I know an engineer who spent two years of his life making sure the new water pump designs would fail at warranty + 50 percent, but only in an annoying, non catastrophic way.
Also, plastics that last very specific amounts of time are common in specific pieces of assemblies in mechanical timers for refrigerator defrosters and the little crossbars that tie the vanes in air vent directors together. Replacement timers use all nylon gears and last “forever”.
The one I personally uncovered is a Honeywell thermostat. It is a direct replacement for a mechanical thermostat that would frequently fail about 10-15 years out due to corroded/pitted contacts. The all electronic replacement does not have this problem, but they still failed around 10 years out, but with remarkable predictability in my friends apartment complex.
I reverse engineered one. It is powered by the 16-24v signal line. It uses a simple potentiometer to set the temperature, no clock, memory or other features. It has a battery soldered on the circuit board. The battery slowly discharges while the unit is on. In about 10 years of operation, the battery voltage drops below 1v or so. The battery powers nothing, but the microcontroller senses it’s voltage and when it is too low, it changes the behaviour of the thermostat to randomise the temperature cut in/out points by about 10 degrees Fahrenheit , making the thermostat annoyingly unpredictable in a way that is very similar to the typical failure mode of the old thermostat it replaced.
One notable difference is that the electronic one will never fail (unless it is in the off position) to come on at 45F or lower, preventing the programmed random behaviour from provoking a freeze-up and damage to structures, so I guess that’s nice?
This is an incredibly useful investigation! Did you publish it somewhere?
+1 on this. I don't think I've read a story about how planned obsolescence is achieved in such a novel and non-plausibly deniable way. By that, I mean they haven't just cheaped out on materials, they've spent extra to make it fail predictably.
> The battery powers nothing, but the microcontroller senses it’s voltage and when it is too low, it changes the behaviour of the thermostat to randomise the temperature cut in/out points by about 10 degrees Fahrenheit , making the thermostat annoyingly unpredictable in a way that is very similar to the typical failure mode of the old thermostat it replaced.
This should be criminally investigated and the person who ordered it be put in prison for at least a decade.
Why not at least 9? Or 5?
I think it would be best to focus on the deterrent effect for the future: we need a law that makes this business strategy not viable. Not on punishing bad behavior that already happened. Maybe such law already exists, but we need more enforcement. Or a better thought out law.
I don't think it's important if _that_ person gets jail time. I would not particularly rejoice at the news. But if somehow this practice was made impossible or impractical, I'd
One of the reasons for punishment is deterrence. It it becomes clear people consistently go to prison for doing something like this that will reduce the likelihood of people doing this in the future
I was in film school in the mid 00s, when RED was just starting to sell digital cameras to Hollywood studios. I remember a lot of my professors being concerned that we'd lose the archival properties of cinema - you can play back a 100 year old movie with a bright light and a ratchet - the same stuff you need to play back a movie from the 90s. They were concerned there'd be too much churn in digital formats.
Just this weekend, I saw a headline that the Looney Tunes box set I bought then probably doesn't work anymore, because Warner Bros used crappy materials to mint the DVDs and people have had them degrade beyond playability.
Film wasn't always perfect either. A lot of early, pre-1950s cinema has been lost because the old nitrate film stock degrades over time. And can catch fire.
https://en.wikipedia.org/wiki/Nitrocellulose#Nitrate_film_fi...
Thing is, those old films will eventually degrade too unless very carefully maintained. I don't think there's realistically any storage format that doesn't degrade over some period of time. Even things carved into stone will weather away over time unless somehow protected.
In an interesting way it's almost that human memory is the most durable format -- as long as we remember to care for and preserve information, we can keep it around as long as people are around; But once people stop caring about it, eventually it will fade.
The word unless is unfortunately superfluous in your statement. David Fincher just went through a grueling restoration process for Seven, and he talked about the process and basically said: Eastman Kodak has spent a lot of money to convince Hollywood that if your shoot on film and keep it in a vault that it will never degrade. It’s false.
That's it, data needs to be refreshed regularly, archival data needs to be kept 'alive' and transferred to newer media on a continuous basis.
We have ancient oral traditions that describe constellations that no longer exist (the Seven Sisters). doi:10.1007/978-3-030-64606-6_11
So kind of correct but not quite related?
The old film stuff which survives is mainly due to material quality, storage and luck, in that sequence. Those DVD started already losing the battle.
DVDs use organic layer for data storage (that rainbowy part IIRC). There is no way in chemical reality that that layer can last more than 2-3 decades, apart from very few outliers. I'd say half-life is somewhere around 15-20 years from what I've witnessed.
If you have anything worthy still on DVDs that still works, make a backup to keep it.
If done correctly a ~35 year old Laserdisc's glue layers are still fine. This depends on the plant and when the disk was produced, but Pioneers plants were quite good by the late 80's.
Most 1980's CD's are still fine, except for ones made by PDO UK.
I'm not sure if the glue layers in DVD are organic or not, but I think the rainbow part itself is aluminum.
I recently found an old spindle of DVDs that I burned a while ago, mostly with booty gathered from sailing the seas, if you will. I had a 100% success rate with guessing which discs would be unreadable just by looking at them -- the recording layer had degraded so much over time that it was apparent to the naked eye.
Luckily this was all stuff I had no issue with discarding, but if those discs had contained anything of sentimental value, I'd have been quite upset to find that they were basically useless now.
> If you have anything worthy still on DVDs that still works, make a backup to keep it.
And make sure to make it to multiple other formats, preferably including some sort of cloud storage. Solid state storage, especially modern small portable drives, are great if you use them often, but if you're planning to just copy stuff to them and leave them sitting unpowered for a long time, you should be aware that over time they too will suffer from data corruption. The charges in the storage cells don't leak fast, but they do leak.
You gotta actively maintain your backups, even if that just means plugging the backup drive in every other month to check its' health.
For archival purposes M-DISC can then be used, whith a purported lifetime of 1000 years.
> it's really difficult to build things to last.
Having a non-user replaceable battery is a really easy way to ensure a product stops working after 3-4 years though.
And the criticism is typically directed at companies like Apple, who does make things that last physically, but then force you to upgrade by way of battery.
Both can be true: planned obsolescence is real, but building things to last is difficult too.
IMO the durability problems in early generations of products tend to be "real", because there are still real engineering problems that aren't understood, and there isn't (generally) a super limited market. Once the engineering problems are solved and the market is fully saturated, there is suddenly an incentive to add planned obsolescence. I don't have any data to back up this claim though.
A more accurate term is "value engineering."
If you have a product that's been in the market for a while and it looks like it's meeting service life expectations you start looking at it trying to find ways to save money by substituting cheaper parts. You swap out metal gears for plastic gears, for instance.
If these parts have a shorter service life, but the service life is still longer than the warranty, then maybe that's a win in two ways for the manufacturer.
> You swap out metal gears for plastic gears, for instance.
Great, till the motor that drives the gears jams. When the gears are metal,the expensive part (the motor) is more likely to lose. When the gears are plastic, the motor survives and you need to replace the gears with nylon ones or 3D print your own.
The plastic gears may not always be designed as a sacrificial part, but most consumers unfairly dismiss the possibility immediately
This comes down to warranty too. If it fails during the warranty period, which one does the OEM want to pay to replace: the expensive motor, or the cheap gearing?
I think of it as a continuous feedback loop between engineering, finance, and QA that ultimately ends in a product being manufactured as inexpensively as possible without dying in the warranty period.
Wow that's super interesting! I've never heard of this, but the appeal is immediately obvious. Thanks for commenting, gonna have to do a Wikipedia binge.
You're never really forced to upgrade because of battery. If you don't want to get Apple to replace it (which though expensive is still much cheaper than a new phone), then you can take it to your local phone repair shop which will do it for not much more than the cost of a replacement battery.
In some versions of the iPhone the screen is maliciously connected to the board with strong adhesive making these replacements not easy at all.
> the screen is maliciously connected to the board with strong adhesive
That’s not necessarily malice. Using lots of glue makes the device stronger, and making glue that a) glues really well (if there’s as good as no bezel, how is the screen staying attached to the phone otherwise?), b) lasts for years in any climate and c) can be easily removed isn’t an easy problem.
Using glue is an anti-repair malice by itself. On my planet screws and gaskets were invented long ago.
Screws are visible from the outside though.
In any case, all it takes to repair a phone with a glued screen is a two face suction grip for about 20 dollars and an ordinary hair dryer.
The nasty part of a phone repair, I will admit that, is scraping off the glue gunk - I had to repair a Google Pixel once where the battery was dead, and during removing the glue on the display unit border I apparently managed to damage the seal between the OLED display and the glass, exposing the OLED to oxygen which led to eventual oxidization and a new display panel.
> Screws are visible from the outside though.
Which is a positive in my book, it means I know where to start if I need to get into the thing.
It’s fairly easy to open. They designed it so a cheap and inexperienced worker in the Apple Store can replace the battery quickly and without issues.
They also made a massive improvement by designing an adhesive for the battery that detaches with electricity. So you no longer have to use pull tabs or heat.
There is a choice to pay 4 cents or 6 cents for a capacitor in your electronic devices.
But unless you spend the effort to personally test those 2 cent more expensive parts, how do you know you are actually getting more for your money until after your or your customer's shit is broken? Even if you do test it, you might need to retest those same parts a year or two down the line as either your suppliers equipment wears down, or the skimp on QC more over time, or if they just outsource it to someone else as a middle man. There is a lot of room in there for people to get fleeced because everybody is playing the same game all the way down the line to the hole they dug the minerals out of.
That's like the simplest possible case, and it's not even that clear cut. The truth is nobody has any idea which capacitor is going to last longer.
Things like fatigue failure, surface wear, vibration, corrosion, etc. and super hard. Entropy is a real bitch and it comes for everything.
"There is no choice" - clueless MBA
There was a Leviton (well known brand) timer power switch that would prematurely fail.
They spec’d out too low temperature rating of a capacitor that was right next to a heat source and cook itself to death:
https://m.youtube.com/watch?time_continue=315&v=BQM4ERy-wpY
https://electronupdate.blogspot.com/2017/12/leviton-ltb30-bu...
So yeah, tried too hard to save 2 cents
That's not a 'saving 2 cents problem', that's a failure to recognize the thermal environment and requirements for a component, which is kind of my entire point: engineering isn't easy.
The 6 cent capacitor is more durable and can absorb an error like that without the product failing.
Like they say that anyone can overbuild a bridge but only an engineer can make it barely stand up. A lot of that cost cutting is useful but it tends to go too far.
Same point: anyone can build a submarine that gets to the Titanic.
>Like they say that anyone can overbuild a bridge but only an engineer can make it barely stand up
The majority of biggest suspension bridges if I remember correctly are barely standing up. They use above 80% of the cables carrying capacity for themselves.
Your CEO will be very upset when they find out that their probable bonus is used on "useless" capacitors, 2 cents at a time. Instead, you should use 2 cent capacitors and pay him the rest for the ingenuity. /s
Obsolescence doesn't exist because a comically evil mastermind designs things to break. It exists because capitalism favors profits over anything else.
A lower quality component is cheaper than a higher quality one that would last longer, so that's what ends up being mass produced, and that's what you, as a product designer with no power over the entirety of the production pipeline, has to work with.
Well, also it turns out that most people won't pay that much extra for something to last longer.
It might if there was an actual reliable correlation between the price of a product and its longevity. But many times the shittiest products will slap on some marketing materials about it being extra heavy duty or something, or design it to appear like a more reliable competing product, but charge more for it. I buy the cheapest parts not because I want the cheapest parts, but because spending an extra 20% on the price often results in the exact same part with zero extra value.
Also paying extra does not in any way mean you will get any better quality these days. It is indeed a market for lemons.
People have typical shelled out significant more money for Miele washing machines because they were known to last typically up to somewhere between 1 and 2 decades and be repairable.
People pay a lot extra for Toyota.
I don't want to pay extra for my pants to last at least a full year (think 100 days use, 30 wash cycles), or for my electronics to last at least five years since I am old enough to remember that this used to be absolutely normal and the way things used to be.
And part of this is because it's very difficult for consumers to measure this, especially as even the best brands experience enshitification. Sears' Craftsman tools famously had a lifetime warranty, but capitalism eventually did its thing and outsourced their manufacture and removed the lifetime warranty, hoping to leverage years of good will for a short term gain.
They also started putting plastic gears in their gas powered stuff. No bearings, just bushings in the shaft. Crap like that.
All these companies some of us remember are all now owned by the same company. This is how capitalism goes. Eventually, a company makes a mistake, and a competitor will absorb them.
This is dramatically simplified, but the big joke is that capitalism breeds competition and that is good for the consumer.
The illusion of choice via mergers and acquisitions.
> It exists because capitalism favors profits over anything else.
…and that’s where the regulator needs to step in and establish a set of requirements which must be met to allow profiting.
You are assuming that a product designer needs the product to last as long as possible given our current knowledge of physics, chemistry, engineering, and manufacturing at the moment. Most of the time, that's just not necessary. Things break, and if you can make some money off of them before they break then we can keep the cycle going. Customers would happily spend the same amount of money again after some time if they expect an improved product (for proof, see every subscription service).
> capitalism favors profits over anything else.
At what rate of return does "profits" turn into unbridled greed and capitalism turns into parasitic exploitation?
Spending time in a company that designs and manufactures real products will cure anyone of this conspiracy theory. There’s probably an exception for companies that don’t have any warranty and don’t have to suffer returns (e.g. the stuff you buy from Temu). Any company that has to build a reputation and suffer the economic consequences of warranty claims will not be doing anything to intentionally make their products break down over time.
Once you’re close to the engineering side of physical products you also realize how hard it would be to make products that break down precisely after the warranty period is up. Most failure modes get spread out over a very long time (years/decades). Attempts at intentional obsolescence would start cutting into your warranty period very easily.
> Any company that has to build a reputation and suffer the economic consequences of warranty claims
What are the economic consequences of warranty claims if you products are cheapened to fail after the warranty expires?
Have you not heard of enough of penny-pinching electronics fails (a device worth hundreds $ failing due to low quality part worth cents)?
The argument is, cheapening your products to break after the warranty expired is sufficiently hard that it would result in plenty of products breaking before the warranty expires.
It's not rocket science
First, you're not blind - you can test your product to see what the "plenty" is.
Second, many components have rated use, so it's easy to estimate mean time to fail and pick the one beyond the warranty period with whatever buffer you like. It's not like you need seconds level of precision here!
Might I suggest reading about the normal distribution?
Or, I don’t know, perhaps giving slightly greater consideration to the people in this thread who’ve actually worked on physical device engineering?
The level of consideration matches the level of argumentation, e.g., it's obvious you failed in your interpretative nitpicking on the word "mean" and think "reading about the normal distribution" means anything in this context.
Appropriately for the topic, I tailored the level of consideration to just barely exceed that of your original argument. So, next to none.
Are you replying to yourself? You were the one demanding consideration, not me!
Please design a physical product to reliably fail after a specific and precise amount of time (not usage, because that’s easier and not what you’re arguing), then come back and describe how easily you accomplished that feat. Everyone reading this thread who has worked in device design knows that your assertions are completely and utterly misguided.
Right after you explain how in this imaginary world of 0 knowledge where you're not even capable of translating usage into time companies set a warranty to 3 years (>legal min) instead of 13; and why there are warranty limitations for heavy use.
(and no, you don't need "reliably ... specific and precise", those are just artifical constraints you've added)
And don't speak for everyone, not everyone is so clueless re. business decisions just because they've designed some hardware.
I think the point is that Hanlon’s Razor applies here. Though there are definitely cases like this, I’m not sure how one could prove that the penny-pincher was intentionally oblivious to the damage from failure.
I agree with your overall sentiment, but I can't help but feel that when companies offer single-year warranties it's because they haven't put in the engineering to keep the failure rate down over what's actually a reasonable-for-the-consumer lifespan for the product.
The cost of improved quality still need only offset the cost of returns within the warranty period and opinion on reasonable product lifetime though. At some point the cost of better quality will be greater than the profit margin a company is willing to accept and a consumer is willing to pay, but it’s in the companies best interest to get that as close to a number that passes the pub test (e.g., an ‘untentional’ bug bricking the firmware the day after warrantee expires)
I’m not convinced some of my very expensive smart products aren’t intentionally degrading over time, given fw is introducing more functional bugs.
When peoplespeak of planned obsolescence, they're discussing how companies pay the bare minimum to make a part that functions within the warranty period. They aren't doing it to fail the part prematurely, they'd doing it to pinch pennies in the manufacturing costs.
Do you think the fact that new cars have engines that are not rebuildable but only replaceable is just a coincidence? With every year car manufacturers get more insight in how and when things break, thus allowing the use of more plastic parts in the engine bay
Almost any car can go 200,000 miles these days and exceptions (Hyundai/Kia engines, Nissan transmissions) are well known and excoriated.
Pre OBD2 cars just didn’t do that. 100k was a significant milestone for the life of the car. Today, it’s a preventative maintenance milestone.
Shitty plastic parts aren’t a feature of modern cars, just lousy companies. I had a 1991 Dodge Spirit in college and high school that had a little plastic part in the distributor that broke when it got hot.
When it did, the car would just stop if you hit a puddle or turned right quickly. It did so enough that I kept two spares in the trunk. One time the car died on the ramp from the GW Bridge to the West Side Drive. I just stopped on the ramp and fixed it, pissing off hundreds of people in the process.
Great story. The GW bridge is one of the most stressful driving-in-city-you-don’t-know-well experiences I’ve ever had. We were literally shouting at google maps as it blithely delivered nonsense while we were surrounded by cars who wanted very much not to let us change lanes.
>Almost any car can go 200,000 miles these days and exceptions
Doubt that
>Pre OBD2 cars just didn’t do that
In Eastern Europe, if the car has 200k-300k km on the odomoter, it only means one thing - the odometer is turned back. Pre OBD2 doing 500k and up is pretty normal here.
>little plastic part in the distributor
Distributor was always plastic, afaik. I'm talking about plastic water pumps on the new BMWs
"How Many Miles Does a Car Last?
The Bureau of Transportation indicates that the average age across the board for vehicles still on the road is just over 11 years according to Autotrader, and the average may be approaching 12 years. Standard cars in this day and age are expected to keep running up to 200,000 miles, while cars with electric engines are expected to last for up to 300,000 miles."
https://www.caranddriver.com/research/a32758625/how-many-mil...
It's not a coincidence - new cars have turbochargers and electronic engine control that provide huge performance/efficiency gains and necessarily are harder to repair.
Your average shitty 4-banger from the 80s or 90s is not remotely comparable to a new engine - in almost every respect (including reliability!) the new one is better.
Turbochargers date back to the 1920s, and I'd rather troubleshoot a modern EFI/GDI system than a carburetor any day of the week.
New engines also have thin blocks, which cannot be honed
New engines don't ever need to be honed. You can change the performance parameters in software easily enough.
I'd be fine with planned obsolescence if the mfr had a duty to disclose the means of obsolescence and the Product lifespan.
While we are at it, I want companies to disclose that a brand is made with cheaper ingredients or meets a lower quality expectation. Can think of some loopholes myself though.
>it's really difficult to build things to last
A lot of depends on where your price point is. Do you compete with Temu or do you sell expensive things. People rarely expect cheap things to last, but if you don't compete on being the cheapest, than the product is expected to be made to last
I'm saying even when cost isn't the motivating factor, it's _still_ difficult to build things to really last, especially when there are moving parts.
A similar thing happened to my Brother laser printer. It has a tiny rubber piece inside that serves as a bumper to quiet down a component that clicks while the paper travels through the printer. Over time, it gets sticky and winds up holding the component too long, which confuses the printer into thinking it has a paper jam, causing it to suddenly abort the print job partway through. The fix was to simply remove the rubber pad and it was back to normal -- albeit a little "clickier" than when it started!
Details if anyone is curious: https://www.reddit.com/r/printers/comments/r04j3s/trying_to_...
Same kind of problem with an old HP LaserJet 1300 we still use. It began by it occasionally picking up multiple sheets of paper and jamming. It gradually got worse until the printer wasn't usable anymore.
The issue turned out to be the solenoid for the pick-up mechanism. When activated it should cause the pick-up mechanism to turn once. The solenoid once apparently had a small rubber pad to reduce noise. This had turned into goo and the solenoid would stick causing the mechanism to turn multiple times.
Fixed by removing the left-over goo and a piece of tape. Ten minute fix.
I had the same problem when my previous Brother printer was nearly ten years old, I did the same trick, and it worked. Most components might last almost forever, but things like rubber or glue, not so much.
I had forgotten about Quantum hard drives.. I bought a Quantum harddrive in the 1990s for my mac like "Tower Power Pro".. It stopped working about a week after I got it with clicks. The first clue something was amiss was the person on the phone stating "thats a little early for it to fail". Got a replacement drive... 2 weeks later same issue. I think they were bought out by someone.
As I get older I wonder how may of my burned DVDs will still work.. My MiniDiscs still do as of this fall when I dusted them off (different technology). I had heard of tv networks "baking " magnetic tapes to get the information off.[1] https://en.wikipedia.org/wiki/Sticky-shed_syndrome
I bought a 50MB (yes, megs) Quantum HD from an acquaintance. It was freaking slow connected to my Amiga, like 20-30KB per second. It also made a horrible high-pitched whine.
Figuring I had nothing to lose, I turned it over and squirted some 3-in-1 oil on the motor spindle. The whine started increasing in pitch as it quietened, and slowly the HD benchmark program started creeping up toward a more reasonable 1MB/s or so. I didn't use that drive afterward, and just copied the, ahem, public domain apps and games off it and then threw it away.
I have not before or since sped up a computer by oiling it.
Rubber doesn't age well.
I guess that we've all had some kind of gear that still works fine, but the rubber coating is all tacky and nasty, and leaves smears on your hand.
I had to toss out a bunch of really good mice because of that.
That's why I've decided that my next mouse won't have any rubber in it, but it's difficult to find a good mouse without rubber. I'm still looking for one.
Generally, I try to avoid buying anything with rubber. It is usually the first part that goes bad. Either it gets sticky and starts melting or it gets hard and dry and breaks up. Also, I avoid using rubber bands. They usually end up damaging objects they hold together.
Here's a good page about conservation of rubbers and plastics for those who like to preserve their vintage stuff for a long time. https://www.canada.ca/en/conservation-institute/services/con...
In some cases, plastic doesn't either. It will "dry" out and either crack or begin to flake off. I've had plastic gasoline containers where the plastic rings that you tighten down to prevent leakage, simply crack down the sides when trying to unscrew them to get to the fuel, especially in winter time.
This is not to say all plastic is this way, some plastics that are more flexible, like on the gas containers themselves, can last for years. But the cap rings are made of hard plastic.
Yep. Vintage Macs suffer from the plastic cases getting brittle and snapping when bent.
The problem is on many models they were meant to bend some to release a clip, for example to open the top of a case.
Or they just can’t hold the stress they were supposed to, like the display hinge attachment points on many classic Mac laptops.
> Rubber doesn't age well.
This morning I replaced the rubber grip on my manual coffer grinder. By my math I'd ground about 40 kg of coffee by hand over 4 years, and the grip had gotten to the point where it just spun around the body of the grinder unless held very tightly.
I assume I could extend the lifespan by wearing gloves when I grind coffee to keep my hand oils off the rubber, but the replacement was only $5.
4 years vs 40. Different timescale and use?
Oh yeah, completely. Was just an offhand comment about my very recent experience with aging rubber of one particular type.
Some rubber ages very well indeed. Some doesn't.
"Rubber" means lots of different plastics, some of which are very stable and some of which are very unstable. Some are natural; others are synthetic. All they have in common is that they are soft and very elastic—if even that, since sometimes ebonite is called a rubber as well, comprised as it is in large part of natural latex rubber.
Silicone rubbers in particular are extremely stable.
You can use isopropyl alcohol to remove the sticky nasty rubber and at least make the thing usable again.
Tried that.
Didn't work for me. Still sticky and messy, with the added benefit of adding schmutz from the cloth I used.
It takes a lot of alcohol. I learned to soak a paper towel and rub it on the sticky stuff with almost no pressure. If it sticks, there is not enough alcohol.
And change the paper towel frequently. It works by dissolving the sticky stuff, not mechanically wiping it off. So the paper towel picks up the dissolved crud after only a few wipes, then switch to a clean one.
I’ve cleaned cameras, mice, umbrella handles, and the back of a Samsung tablet this way.
Next time give lighter fluid a try, that should work better.
Try lighter fluid, that should work better.
Yup - my Nexus 5 is all sticky and nasty because they made the back out of rubber.
What are steering wheels made of? That material seems to last longer, and they exist in much harsher conditions.
Lighter fluid will easily remove the soft touch coating and you can reapply it again if you wish. Steering wheels are mostly leather.
Remindy me of my Wii remotes with their gross rubber sleeves. I really need to clean them.
The most common issue with Pentax ME Super, one of the most popular consumer-grade manual focus SLRs, was caused by a degraded rubber ring near the mirror assembly.
https://www.ifixit.com/Guide/Pentax+ME+Super+Mirror+Box+Serv...
The ones without such an issue is still often recommended for hobbyists who want to get into analog photography today, because they are generally inexpensive, compatible with very nice lenses, and there are so many of them circulating still for parts and repair.
Given that they were made in the late 70s to early 80s, and the shutter mechanism is fully controlled by electronics (instead of mechanical), it's quite amazing that the rest of the camera mostly held up over nearly 5 decades.
Many years ago, I have lost valuable data stored on Sony QIC magnetic tapes (QIC = quarter-inch cartridge), because those magnetic tape cartridges contained a rubber belt that was used to move the magnetic tape inside the cartridges, when they were inserted in a tape drive.
After many years of storage, the rubber belts had become fragile and any attempt to move the magnetic tape turned the belts into dust, making the cartridge unreadable.
The LTO magnetic tape cartridges used today are much more robust, because the cartridge is simpler and it hopefully no longer includes any parts that are susceptible to rapid aging.
At that time, i.e. 30-40 years ago, rubber belts were used because they ensured in a simple mechanical way a constant moving speed for the magnetic tape. Later, the electronic alternatives for ensuring a constant tape speed by varying the speed of an electric motor have become cheap enough to eliminate the need for such belts.
The "Adrian's Digital Basement 2" Channel took a "Plus+ Hardcard" drive and found something similar.
https://www.youtube.com/watch?v=lzMoEwTTFJs
Wow, that was my first PC HDD. (I had a 10MB HDD in my Sirius 1 before that)
Bought at an Egghead somewhere the Computer Museum in Boston while on vacation from the UK -- about half the price of something similar in England at the time due to exchange rate.
Colin from "This Does Not Compute" used the same Kapton tape fix on an Apple tablet prototype: https://youtu.be/OM64l8tZSwY?t=293
I was wondering whether the flat tape makes some cylinders physically inaccessible but it seems like this is not an issue.
I too have fixed (temporarily) a hard drive by opening it open and moving the arm back and forth a few times. I got about 20 minutes out of it. Was able to save some photos… that are stored on another hard drive.
This reminds me of what happens to that rubberized coating that was so popular on plastic peripherals a long time ago. I have a relatively recent Ubiquiti AmpliFi device and it's just...sticky. I can't get rid of the stickiness no matter what I try.
You should be able to remove the stickiness with lighter fluid.
This soft touch plastic is a plague of early 2000s cars too
having flashbacks to scrubbing what must have been several square meters of the stuff off of the interior surfaces of a mk4 volkswagen golf
but older hard drives like the ones I’ve shown above are remarkably tolerant of being opened. That’s not to say I would leave it operating without the cover for an extended period of time, but for quick data recovery purposes in a decently clean environment, it’s fine.
The airflow while the platters are spinning keeps dust off them, and as long as particles don't stick and cause excessive "thermal asperity", the heads will still work. The latter is what makes transient bad sectors appear.
Ahhh, Conner. My second computer (a 386sx-33) had a whopping two Conner IDE 120MB drives... until it didn't. I can remember the clicking as those drives would spin up... until one fine day the clicks died and POST threw an error wondering why my hard drive wasn't ready.... and then the drive began clicking again. One soft reset later and I was back in business, but even as a teen back then I knew that was a sign from PC-Hulud to immediately start pulling everything off. I had always assumed the problem was stiction of the read/write head w/r/t the platters. Neat.
I’ve recently got into old typewriters and have had the same problem with the rubbery belt that goes from the motor spindle to the larger wheel that spins the inner roller that drives the keys and returns the carriage. They turn into a very sticky goo, and those exact size belts are not available.
I just found my old Flip Camera in bin of old electronics today and its rubber case was a sticky mess. In the bin is a bunch of old hard drives that haven't been touched in a decade as well. I imagine there is nothing on there I need that hasn't been transferred elsewhere, but also just curious if any of them work.
I'm a bit surprised there was no mention of semiconductors (mostly capacitors?) going bad on 1990's hard drives. I want to rescue the Fast SCSI2 drive on my old Amiga at some point and never thought the problem might be inside. If the electronics on server-quality drives (it sounds like a jet engine) are this reliable, then I'll be thankful for having just one problem and not two.
Do HDDs have many electrolytics? Those are the main culprits for going bad, and are usually used for power electronics, not controllers/processing circuitry (they don't need the bulk capacitance that you'd usually use an electrolytic for)
There are indeed some aluminum electrolytics hiding on Quantum drives. They look sneakily like tantalum caps, but they're just cans hiding inside a plastic cover. Here's one where I accidentally broke the cover, revealing what's underneath:
https://i.imgur.com/LdjUx3v.jpeg
You can’t convince me that’s not intentionally disguised like that.
No reasonable EE would mistake this for anything but an electrolytic cap.
This is a very old package design from the transition between through hole and SMD. The process for making the vertical axial style common now hadn't been perfected and it was briefly cheaper to cast regular axial caps into an epoxy block.
No other component looks like this, it's a very distinct package and footprint from any other type of cap. No one tried to disguise anything, they really just thought this was the cheapest way to make a surface mount electrolytic cap.
It's more likely so these could be used with a pick and place machine. They're obviously lytics if you look at the ends. I don't know why everything has to be a conspiracy these days.
That is cute as hell XD
I'd have to pull the drive to have a good look, but my memory is that the circuit board resembles the inside of a 1960's era transistor radio. Will hope you're right.
> I'm a bit surprised there was no mention of semiconductors (mostly capacitors?) going bad on 1990's hard drives.
I don’t think any kind of capacitor is a semiconductor.
Dons glasses well etymologically... the "semi-" in semiconductor means "partial", something between an insulator and a conductor. A capacitor is an insulator between two conductors.
(But this approach fails on the temperature coefficient of resistance test: capacitor ESR increases with temperature while semiconductors have a negative coefficient.)
Capacitors aren't semiconductors, they are just regular components.
Semiconductors actually are pretty stable long term.
The capacitors that go bad tend to be the electrolytic ones, and there aren't a lot of those on things like hard drives.
Hm, I have some classic scsi drives still kicking in some old Macintoshes, maybe I aught to back them up. They're funny, sometimes they get stuck and I have to whack them with the rubber side of a screwdriver to start them up.
Hmmm, I wonder if there are similar tricks for newer hard drives. I have a 2010 iMac that has a seized or "otherwise non-booting" hard drive, just randomly wouldn't boot one day. I can only guess there is a mechanical problem like this, because those aluminum iMacs were notorious for running too hot internally and basically overheating the HDD. Same problem on my wife's 2008 iMac, that machine burned through 3+ HDDs due to the heat issue.
Chances are it's poyurethane.
Low-density polyethylene would have been the better choice for longevity, but not so much for shock-absorbtion.
PU is definitely known for degrading like this over time.
LDPE foam exists, but I think it wasn't common yet at that time.
Why would you say PU rubber? ~30 years in an environment with some thermal cycling seems rather high for PU rubber.
I've thrown out an expensive chefs knife this week with a sticky rubber handle. Also two pairs of boots where the rubber bases have just crumbled. I contacted the manufacturer of one of them because they were a very expensive 'best pair' and had hardly ever been worn. The reply was that boots have to be worn every few months to prevent this, and not covered by warranty. I wonder if all polymers/plastics are like this, use it or lose it. Entropy rebooted.
I've had good luck using bicarbonate of soda as a mild abrasive on knives and saucepan handles with that horrible rubberised soft-touch coating. On good quality items it removes the stickiness. On poor quality items it removes the soft-touch coating, which is still a good result in my book!
Unfortunately rubber deteriorates as it absorbs moisture. I forgot the name of the reaction, but keeping these things in a well ventilated, cool and dry place extends their life a lot.
Interesting. I have an old 80mb IDE from an ancient laptop that won't read, maybe this is happening.
Before opening it I'm going to try it in an older desktop as it may be that it just doesn't like USB IDE enclosures.
Some old Pentax SLRs have a similar issue [0]. I suspect there are many such examples, even in more modern electronics.
[0] - https://www.flickr.com/groups/891454@N24/discuss/72157680498...
I use a hairdryer to start my old scsi disk drives. I wonder if it loosens the rubber enough for the head to move.
Anyone know whether this is the cause of the stiction problem in Quantum 105 drives in the early 1990s?
This is why I keep my drives in a helium chamber.
I had a 20MB external SCSI hard drive for my Mac Plus. I sold it a few years back. Still worked!
The 20MB era drives tended to have stepper motor actuators, not voice coil (in general). Probably not vulnerable to this particular failure mode.
Very interesting for me as I have a deceased friend's SCSI disk containing his novel in progress.
Now to find a SCSI card and cable ...
Another option, if you can’t find a card, is a ZuluSCSI or BlueSCSI V2 in initiator mode to image the drive to an SD card. It’s pretty nifty! I’ve recently even been using ZuluSCSI as a USB-SCSI bridge with USB MSC initiator mode.
I had two hard drives sitting on the shelves just suddenly refuse to work after not touching them for years... Xbox360 hdd went south, a seagate st4000dm000 too. interesting... what is aging in these modernish drives that makes them go south?
Could be similar things. A rubber gasket going gooey, grease freezing up, anything to make the mechanics off even a little.
The tolerances are so tiny, I doubt it takes much at all.
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