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cross-posted from: https://lemmy.crimedad.work/post/542998

“It does suck, because everybody kind of makes fun of the Cybertruck. To the outside person, it’s kind of weird, it’s ugly, whatever. Once you actually get in it, drive it, you realize it’s pretty frickin’ cool,” he says. “It’s kind of been sad, because I’ve been trying to prove to people that it’s a really awesome truck that’s not falling apart, and then mine starts to fall apart, so it’s just… Yeah, it’s kind of unfortunate and sad.”

  • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 English
    61·
    6 hours ago

    I worked at the Tesla plant in Fremont for a bit and most of every car is held together with adhesive. They claim it’s super strong and once heated, it’s stronger than welding… But, I mean… They are still falling apart and I don’t know if that’s because the adhesive sucks or if it’s because every single day, they had to have someone remind everyone that the glue pattern posted at every station where it’s applied isn’t just a suggestion, it’s an engineering requirement for the structural integrity of the part. People were just slapping the adhesive onto shit in any old way they pleased a lot of the time.

    • grue@lemmy.worldEnglish
      13·
      4 hours ago

      they had to have someone remind everyone that the glue pattern posted at every station where it’s applied isn’t just a suggestion, it’s an engineering requirement for the structural integrity of the part. People were just slapping the adhesive onto shit in any old way they pleased a lot of the time.

      In other words, the things were being designed by underqualified engineers who didn’t understand factors of safety, design for manufacturability, or that precision comes at a cost.

        • rc__buggy@sh.itjust.works
          8·
          5 hours ago

          But never a weld.

          MEK welds styrene. Cynocrylate forms a mechanical bond. MEK will be stronger in tension, cyno stronger in shear.

          • masterofn001@lemmy.ca
            5·
            4 hours ago

            Good ole methyl ethyl ketone.

            Dropped a rubber boot in a vat of it once to see what would happen.

            No idea why, but it came out much larger/expanded.

            • rc__buggy@sh.itjust.works
              5·
              4 hours ago

              Well, OK. So maybe that adhesive is stronger than a weld on that particular plastic. Of course, if you’re talking about adhering a plastic to a metal you cannot weld it so Elmer’s would be “stronger than a weld”. But whatever’s going on it’s not adequate.

              E: and actually welding plastic together typically isn’t that strong, a mechanical bond can easily be stronger than melting the plastic to weld it.