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sheimend

HN member
Joined
Thu, Sep 18, 2025, 6:22 PM UTC
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25
Public activity
4 items

About sheimend

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Recent public activity

  1. comment
    Comment #45317832

    Sound is on for the tomato shot in the beginning of the video, FYI. It is extremely quiet.

  2. comment
    Comment #45293824

    I'm still trying to get better and better data - it's tricky given the size and speed of the movement. But my working model is something like this. Cutting is made of of two phases…

  3. comment
    Comment #45293288

    If any home users cut on glass, they'll be rewarded with an unpleasant screeching sound. I can't say that was by design, but it's not undeserved ;-) The ultrasonic motion acts as a…

  4. comment
    Comment #45293250

    Hey there, Scott here. I'm driving the knife at actually only 10W. When in resonance, this produces a stroke amplitude of 10-20 microns (depending on the spot on the blade) which i…