Viewing profile — sheimend
sheimend
HN member- Joined
- Thu, Sep 18, 2025, 6:22 PM UTC
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About sheimend
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Recent public activity
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Comment #45317832
Sound is on for the tomato shot in the beginning of the video, FYI. It is extremely quiet.
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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…
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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…
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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…