Teardown Of A Scam Ultrasonic Cleaner

Comments

• jonathan@lemmy.zip ⁨3⁩ ⁨weeks⁩ ago

  Everyone knows that ultrasonic cleaners are great

  Mate, wtf is an ultrasonic cleaner?

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  • unexposedhazard@discuss.tchncs.de ⁨3⁩ ⁨weeks⁩ ago

    I can attest that they are great. I use them daily for cleaning stuff at work.

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    • ilmagico@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      Few years ago at work, people were using them to clean electronics after soldering, etc. but once, they did it on a board with a MEMS device, a gyroscope and accelerometer chip. Took them a while to figure out while none of them worked until they narrowed it down to the ultrasonic cleaner…

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  • espentan@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    How the heck do you clean your old carburators? /j

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  • truthfultemporarily@feddit.org ⁨3⁩ ⁨weeks⁩ ago

    I got one a while ago and they are great for cleaning small objects, and glasses. Basically ultrasonic sound waves get send through water, small cavitation bubbles form and rip off the dirt.

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    • QuarterSwede@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      Real ones are great but definitely more expensive. My wife has one that uses liquid and she puts jewelry in. Works extremely well.

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  • prettybunnys@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

    Everyone has a plumbus

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  • QuarterSwede@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    Not this.

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  • MonkderVierte@lemmy.ml ⁨3⁩ ⁨weeks⁩ ago

    The toothbrush?

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• shiiiiiiiiiiiiiiiiiiiiiiiiiiiiiit@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

  I ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.

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• Landless2029@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  I bought a fake one off of Temu. It was so cheap why not.

  Instantly knew it was fake once it was in my hands. Tried it anyway. Clearly just vibrating.

  Returned it. They told me to keep it…

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  • sugar_in_your_tea@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

    It was so cheap why not… it was fake

    That’s why not.

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    • theneverfox@pawb.social ⁨3⁩ ⁨weeks⁩ ago

      Cheap doesn’t mean fake, just like expensive doesn’t mean quality… Not anymore

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• DrFistington@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  If you need an ultrasonic cleaner, just go to harbor freight, they have decent ones for cheap. I bought one a few years back for carburetor parts a few years ago, and it does a great job

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• shalafi@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  I got an AC powered unit off Amazon a couple of years ago. How can I tell if it’s fake? Jewelry comes out bangin’, but I’ve wondered it if should work even better.

  Wife got this stuff last week and it seemed to make a dramatic difference.

  OTOH, I can’t see this thing having a legit transducer. Anyway to tell without tearing it down? Guess that’s easy enough if I really care.

  Should I try something rusty? Should a “real” one work for that?

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  • squelch@infosec.pub ⁨2⁩ ⁨weeks⁩ ago

    From the video a good tell is having a metal basin, also the waves in the liquid when turned on should be grid like rather than wavey waves, finally put some tin foil in and it should come out with wee little holes in… YMMV I guess

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