• lightnsfw
    link
    fedilink
    English
    arrow-up
    8
    ·
    10 months ago

    Do you mean to use it to magnetize objects?

      • lightnsfw
        link
        fedilink
        English
        arrow-up
        10
        ·
        edit-2
        10 months ago

        Putting a tool in a powered coil will magnetize it temporarily but I don’t think it will stay magnetic or at least not for long. They sell little magnetizers that you can get cheap that will last a lot longer though if that’s what you’re looking for…

        I have one like this around somewhere that worked well when I tried it.

        https://www.amazon.com/Ullman-No-Specialty-Magnetizer-Demagnetizer/dp/B00829S1JI/ref=sr_1_13?keywords=magnetizer&qid=1694044940&sr=8-13

        • Brownian Motion@lemmy.world
          link
          fedilink
          English
          arrow-up
          7
          ·
          10 months ago

          Depending on the coils number of windings, and the size of the tool it will magnetise it pretty well. I used to do this to screwdrivers before they came pre-magnetised. And they will stay magnetised for a very long time.

          Most of the time the reason for becoming demagnetised is due to dropping the tool several (many) times.

        • cmnybo@discuss.tchncs.de
          link
          fedilink
          English
          arrow-up
          6
          ·
          10 months ago

          I’ve had good results discharging a 450V 1kJ capacitor bank through several turns of 10 AWG wire. If you don’t have a capacitor bank laying around, one of those magnetizers will work just as well.

        • nothacking@discuss.tchncs.de
          link
          fedilink
          English
          arrow-up
          1
          ·
          10 months ago

          Really? If have had good results just placing a screwdriver inside an electromagnet, still magnetized a few years later.

          • lightnsfw
            link
            fedilink
            English
            arrow-up
            1
            ·
            10 months ago

            Maybe it depends on the coil/power source. When I tried it I was just messing around with a coil I had and 12v source and it was not that effective.

        • lossykittensOP
          link
          fedilink
          English
          arrow-up
          1
          ·
          10 months ago

          I appreciate it, I didn’t realize it was so temporary