I watched a 3D printing youtuber say that Adam Savage said 20% but 10% is what he uses.

I have never seen my sunlu dryer show anything bellow 23% even after days of use and I have no idea how to achieve 10 without cooking the filament.

  • @GhostlyPixelEnglish
    6•9 months ago

    I live in a really dry climate, so I don’t really notice issues unless I have a spool out on the printer for months, and even then dust is more of an issue than humidity.

    To be safe, I bought a storage bin with a gasket on the lid that I store all of my other spools in, and that has seemed to work great.

    • ShadowRam
      1•9 months ago

      Yeah… I’ve been printing now for 11 years…

      I’ve submerged PLA in water overnight and then printed it to prove humidity has no effect on PLA.

      PLA doesn’t give a shit about humidity and never has. All the early days of 3D Printing that used Nylon needed drying out.

      Even early days PLA getting brittle was about strain fatigue on the filament and nothing to do with humidity. But modern day PLA these days doesn’t suffer from those old school issues anymore.

      Dust will cause more issues than humidity.

      • Rikudou_SageEnglish
        3•9 months ago

        I’ve had issues with wet PLA filament that were solved immediately by drying it.

        • ShadowRam
          1•9 months ago

          What issues? Brittleness?

          You solved that via annealing and releasing the stress in the PLA, not by drying it.

          • @[email protected]English
            1•9 months ago

            I’ve had bad stringing before with PLA, drying it made it go away completely with the exact same print settings and model.

            I’d argue that the vast amount of (recent, not only older) resources available online showing similar experiences to mine disproves your statement that PLA has no issues with moisture retention.

        • dual_sport_dork 🐧🗡️English
          1•9 months ago

          Likewise, I have had PLA get brittle and snap on the way to the extruder when left loaded on the printer and exposed in my basement for extended periods, but this behavior disappears after I bake it in the filament dryer, even on the same spool.

          • ShadowRam
            2•9 months ago

            You solved that via annealing and releasing the stress in the PLA, not by drying it.

      • @callccEnglish
        2•9 months ago

        That’s interesting. I’ve never noticed issues either but then again I usually keep the spools in sealed abgs with silica