• HiddenLayer555@lemmy.ml
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    21 hours ago

    Tape drives. Remember those big reels of tape on mainframes in the 80s? They don’t look exactly like that anymore, but tape is still used for backups/long term archival because they offer the lowest cost per gigabyte and decent longevity without needing to be powered, as long as you don’t need to access the data all that fast or often.

    Those dank memes and cat videos you posted in 2010 are probably on tape in a data centre somewhere

    • applemao@lemmy.world
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      5 hours ago

      Im obsessed with tape storage, but for audio. Nothing more real than audio on tape! Luckily it’s catching on again. Music is so disposable now, I hope we can keep physical formats alive and keep corporations away from it (digital offers them unlimited control over us).

        • applemao@lemmy.world
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          3 hours ago

          Oh sorry, I meant more reel tape not really casettes, but I love the otari mx5050, and the teac 2340sx. Good machines and 1/4" tape is still affordable. PM me if you’d like more tape info, I love to share.

          • DogEarBookmark@reddthat.com
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            2 hours ago

            Ah okay haha. Ive been buying vinyls lately and there’s a lot of people with casette merch too. I didnt remember tape being that amazing but was willing to give it a shot. I don’t have reel to reel space at my place unfortunately. Thanks for putting it out there though!

            • applemao@lemmy.world
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              2 hours ago

              Well I’ll say cassette quality can never really be good becaise of the slow speed and narrow width. . But 1/4" tape is about the best analog quality you can get (feasibly cost wise) if you go 15 IPS and half track (1 way play, no flipping).

              If you want good sound for cassettes you can’t beat a Nakamichi deck, best there are.

  • LordGimp@lemm.ee
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    23 hours ago

    Pretty much anything in a machine shop made in the last 80 years or so. So many people turn up their noses at anything that isn’t computer controlled anymore. Yknow what a big old mill can do that a CNC can’t? It can make every single part needed to make a new mill. It’s a self replicating machine with the right know how. People don’t respect that kind of quality anymore.

    • Noobnarski@lemmy.world
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      9 hours ago

      I don’t think a mill can make the copper windings in the motor and isolate them. Same with the power cable.

      • LordGimp@lemm.ee
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        9 hours ago

        You don’t need an electric motor. You just need enough spin. I’ve seen old mills and lathes that run on steam. An electric motor just happens to be very convenient with our current technology.

    • CanadaPlus@lemmy.sdf.org
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      19 hours ago

      Can a CNC not do that for just the mechanical parts?

      (I know way too much about bootstrapping semiconductor production at small scale, which seems to be viable but highly impractical)

      • LordGimp@lemm.ee
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        10 hours ago

        Sure, but it’s not as impressive (imo) when you also need a computer control system, a bunch of circuitry and electronics, and a whole mess of software to make it work in the end. A mill just needs enough spin and it runs exactly as intended.

        • CanadaPlus@lemmy.sdf.org
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          8 hours ago

          Oh yeah, I have a copy of the Gingery books and I love it.

          I haven’t seen Gingery into how much power you need exactly, or what blend of RPM vs. torque is ideal. What would be your guess, since it sounds like you might know?

          • LordGimp@lemm.ee
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            9 hours ago

            Torque is the real limiting factor. You can always gear up or down for whatever you’re working on, but at the end of the day you need enough torque to get the work done. And a proper milling machine needs A LOT of torque.

              • LordGimp@lemm.ee
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                6 hours ago

                There are no “typical values” when you’re running a mill or lathe. You could look up “speeds and feeds”, but that’s really just a table that you plug into an equation to figure out how to set the machine. It all depends on what you’re doing and what you’re doing it with. Drilling a hole with a high speed steel drill bit is going to be a bit different than drilling it with a carbide spade, and all that is going to depend heavily on whether you’re trying to run through titanium or tin. You need to fine tune running “x” bit through “y” material for a “z” sized cut.

                Essentially, this is the knowledge that separates skilled labor from manual labor, and machining is (was, RIP cnc button pushers) skilled labor.

                At the end of the day for most metal machining you’ll need between 50hp and 100hp to be up to modern standards. If you want to get that through steam or electric motors or whatever that’s up to you

  • weeeeum@lemmy.world
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    15 hours ago

    Handtools in woodworking. There are some people who refuse use a tool without a cord.

  • MTK@lemmy.world
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    19 hours ago

    Trackballs

    You might think of them as this old mouse that you had 20 years ago, but actually the technology is still being used for all kinds of things, including ergonomic mouse

    • howrar@lemmy.ca
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      21 hours ago

      Because it can do something that the alternatives can’t do or because they refuse to use something more modern?

      • CanadaPlus@lemmy.sdf.org
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        20 hours ago

        “It can’t be hacked”

        Of course, it can, and a lot more easily than a TLS stream, but try convincing them of that. So, more like they refuse to use something more modern.

        • Everyone even tangentially related to healthcare is terrified of violating HIPAA in a way that leaves evidence that can be traced back to them. So the corps force dumb shit like this, while the employees are perfectly happy to tell all kinds of private health information to anyone who will listen. Especially if it’s funny or gross.

      • Ghamorra@lemm.ee
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        20 hours ago

        Because it works. Every part needed to run those machines, even line of code, every possible cause of failure is well documented and there are layers and layers of redundant protocol to ensure that if something does go wrong downtime is minimal.

        The entire purpose of these machines are designed to run for as long as they’re needed. They’re not replaced or upgraded because they were never meant to be. A lot of effort went into this being the case.

    • bstix@feddit.dk
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      16 hours ago

      That’s basically the answer to the opposite question: what is something that someone thinks isn’t obsolete, but really is?

  • SocialMediaRefugee@lemmy.ml
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    1 day ago

    Printing out tickets as a backup. I do this for concerts and travel because then I don’t have to worry about batteries dying, wifi/roaming not being available, getting logged out and having trouble getting back to the ticket, etc.

    I also print out maps when doing wilderness backpacks because even if you download the map you’ll burn through your battery life well before the hike is over but a paper map is just as good. If I really need to confirm my location I can occasionally turn on the app and shut it off. I keep the maps in a gallon ziplock so water isn’t an issue.

    • NGnius@lemmy.ca
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      1 day ago

      Ticketmaster is doing their very best to make paper tickets unusable with refreshing barcodes. Funny thing is that “anti-theft” feature is needed because of their own systemic failures. I do like tickets that are just sent to my email or similar (e.g. as an attachment that I can save to my phone) though, it’s better than wasting paper when I know my phone won’t fail me.

  • I Cast Fist@programming.dev
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    1 day ago

    Writing your passwords in a piece of paper. Safer than storing it digitally and easier for people that don’t know how to use password managers or computers in general to understand what to do to access your stuff if you’re under a difficult situation or dead.

    Also, physical photos. Yes yes, we all have gigabytes of photos, but almost never check any of them. Physicals catch my glance at home very often, great decoration. I’ve also took to writing the day, place and people on the back, plus any other important bits of context.

    • dubyakay@lemmy.ml
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      24 hours ago

      I have a reel of photos from our kids’ album on our TV. Cycles every minute or so. Subs for printed photos fairly well.

      Gave a digital photo frame, cycling the same pictures to great grandpa though and he died the next day. Make of this what you will.