Live data from Hacker News

Viewing profile — catherd

catherd

HN member
Joined
Mon, Jan 29, 2018, 4:27 AM UTC
HN karma
892
Public activity
174 items

About catherd

I love working on difficult hardware projects that are well funded and need to be done (correctly) as fast as possible.

My sweet spot is leading a project from "no implementation spec but clear end goals" to a real supply chain shipping real products.

20+ years designing and building hardware, 10+ years building physical stuff in Shenzhen.

www.sizeabledesign.com www.mzjtechnology.com

Recent public activity

  1. comment
    Comment #48331113

    Your point might be better stated directly because attributing the characteristics of humanity to... humanity is the opposite of what anthropomorphizing means.

  2. comment
    Comment #45869957

    A new ping pong paddle design. My backhand is OK but my forehand sucks. Grip styles for standard handles usually end up favoring one side or the other. I'm making a handle shape th…

  3. comment
    Comment #45058597

    What I'd like is a tool that can be run on a fresh linux install to show what's not working correctly and maybe some diagnostics. Does that exist? Things like suspend to RAM/disk w…

  4. comment
    Comment #44770459

    There are safe (and unsafe) drivers contributing to both car and motorcycle statistics. Is this an argument that the skill curve for motorcycle driving is skewed towards highly uns…

  5. comment
    Comment #44567007

    The effects of deliberate small scale atmospheric aerosol injections is something I've studied extensively. The short term results are often quite noticeable even by parties not di…

  6. comment
    Comment #43508077

    Concrete foundations get stronger as the concrete cures (around a month). Framing is much more resistant to collapse once you put sheathing on it, a roof, etc. Before that it is ea…

  7. comment
    Comment #42946599

    DHL B2C shipments to the EU are generally held in customs until the duty is paid, which makes it slow but ensures DHL isn't left holding the bag when people decide they don't want …

  8. comment
    Comment #42945865

    Could be. The carriers do already have practice ramping up and down for Christmas and Chinese New Year so it seems plausible they could absorb significant extra volume in whatever …

  9. comment
    Comment #42945456

    Only if "utterly fucked" somehow means you can still pay a bit more to DHL and get packages even faster than USPS. Your fast prototypes coming by air freight likely aren't routed t…

  10. comment
    Comment #41910251

    "Better" depends on what you are after. In my world better means not being tied to using proprietary communication protocols over compromised networks with hardware I don't really …

  11. comment
    Comment #41894143

    Yes, most commercial SIP providers are required by law to support emergency services, at least in the US. If we're getting technical it is a mobile phone, just not a cellular phone…

  12. comment
    Comment #41892914

    How long ago was this? Our VoIP stack is completely custom and has taken a while to build. We've been putting significant work into it and lately it's better. We've also specifical…

  13. comment
    Comment #41284871

    It's a forever loan for whatever your average payables total to over 90 days (so $10k every month would be a $30k loan). The loan lasts forever or until you close out that line of …

  14. comment
    Comment #40755576

    As long as you are OK with destructive methods, grinding/sanding the board down gives you all layers. "PCB delayering" is the search term.

  15. comment
    Comment #38898024

    How healthy would the economy be if 100% had no desire to work? That depends on why those people don't want to work and the overall situation, but until all of our needs are served…

  16. comment
    Comment #38866374

    https://wiphone.io/ is Arduino compatible and comes with an audio jack and microphone. It's also completely enclosed, knows how to charge it's own battery, etc. Phone form factor, …

  17. comment
    Comment #38665601

    Push notifications can be cobbled together for self-hosted Zulip using self-hosted Gotify and letting users install the Gotify app. No requirement for an app store approved app. Ho…

  18. comment
    Comment #38205551

    Any phone will lose software support pretty fast, but on the hardware side a mid-low end android device will last 4-5 years of daily use (n=3). Are you speaking from experience or …

  19. comment
    Comment #37976406

    If you are advocating for "used food" as the correct term, there's another state that food enters after it's been used that you might want to be careful about disambiguating :).

  20. comment
    Comment #37069808

    I make a VoIP/WiFi phone that excludes any sort of cellular radio because that's what I want as well: https://wiphone.io

  21. comment
    Comment #36135257

    I'm working on a phone which can be configured to dump the memory if someone fails to unlock it properly, keeping only a dummy profile. There is also a way to restore the deleted i…

  22. comment
    Comment #34574292

    UHT milk hasn't caught on because it tastes only slightly better than reconstituted powdered milk. It is, however, cheap, and hasn't had trouble at all catching on in poor countrie…

  23. comment
    Comment #34122417

    We use Rainloop and the 2 biggest issues are almost nonexistent address auto-complete (it will only try to pull addresses from contacts, which nobody bothers setting up any more), …

  24. comment
    Comment #34120644

    What client do you currently use? I'm looking for a bearable web client.

  25. comment