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butvacuum

HN member
Joined
Fri, Nov 14, 2025, 3:48 AM UTC
HN karma
416
Public activity
270 items

About butvacuum

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Recent public activity

  1. comment
    Comment #49247183

    a bit rich since california is probabaly a major reason the systems are expensive to begin with.

  2. comment
    Comment #49245246

    It'd be better as an ashens video.

  3. comment
    Comment #49232458

    It probably was NRND on mouser/digikey by then... not that there was much choice in 2013- you went with what you had instead of $1000+ dev boards.

  4. comment
    Comment #49217034

    No-Load losses on the power conversion seems to be the real issue and is rarely mentioned and understood even less often. Plus the conversion eff. curve. Eg: I shaved ~40W off the …

  5. comment
    Comment #49205763

    self reply: I didn't mean to sound dismissive, just that it's way older than 3d printers. Overall I'd classify this as a "Gutless wonder": Something Engineered that seems like it'd…

  6. comment
    Comment #49204247

    It's been a standard method for decades. Theres a lot of cases where even the center post isn't required as the zero radius 180 won't fit back through the slot.

  7. comment
    Comment #49200433

    I couldn't quite remember vitalism- so I used aether. I think it shows a lot of vitalism's issues to a much wider group anyway- since aether theory is among the discarded theories …

  8. comment
    Comment #49192703

    so what part of the aether is needed for consciousness then?

  9. comment
    Comment #49140434

    I turned focus time off- and have'nt heard from it in so long I had to look up what you were talking about.

  10. comment
    Comment #49116771

    watching car repair stuff- it's more EPA requirements. an electronic thermostat and fan clutch on an econobox?

  11. comment
    Comment #49115831

    also: citrus- wash your hands after.

  12. comment
    Comment #49110851

    Have a look at Electric impedance spectroscopy- https://en.wikipedia.org/wiki/Dielectric_spectroscopy Theres a handfull of Tier 1 BMS chips that support it already. though, half of…

  13. comment
    Comment #49101029

    most of them are populated thanks to explicit efforts from the government.

  14. comment
    Comment #49085487

    is it just me or is it about once a decade somebody gets publicised for this and the government *really* throws the book at them.

  15. comment
    Comment #49083194

    Desktop DDR rarely exceedes 64bits(you have to combine more than one dimm). Since RAM is a parallel bus that means 64 conductors that have to be impedance and length controlled. GP…

  16. comment
    Comment #49073235

    Very interesting. I don't see it mentioned so I'll ask: Would being able to alter voltage levels on the fly (eg, cells x y and z get 1.25 while abc get 1.2) expand the ability here…

  17. comment
  18. comment
    Comment #49071714

    Is there really a use for this(temporary adhesives) outside of Fixturing?

  19. comment
    Comment #49071581

    This is freqently, dangerously, wrong- and is missing critical information. I saw no discussion of: * C rate * fuse selection * inverter precharge (capacitive loads) * cell level m…

  20. comment
    Comment #49071228

    yea, eggs in a busy kitchen or when you haven't been out of bed for more than 5m is risky.

  21. comment
    Comment #49065080

    This is a fine project- Learning, Teaching, and simply as art. And, though I risk being black and blue for agreeing- I'm starting to: Social media made y'all way too comfortable wi…

  22. comment
    Comment #49055243

    No bees in my bonnet about it. ;)

  23. comment
    Comment #49054867

    This comment is going to stir up quite the buzz.

  24. comment
    Comment #49053810

    windirstat currently doesn't take 3min to index 500k+ files on an 8x8tb drive raidz2 that's 90% full. When I stopped using windoratat 3ish years ago it took a few minutes to index …

  25. comment
    Comment #49053768

    and one with a plate that's already reported stolen. trnslation: it's a zero effort publicity project.