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Recent content by Alphabits

  1. Alphabits

    Memory Wire (Nitinol) questions

    [copied from the Electrical Engineering Other Topics forum] Here's a question about memory wire, also known as nitinol wire. I'm looking for something that is difficult to cut, and extremely flexible. I'm thinking that the nitinol wire meets my flexibility requirements, but I can't find a...
  2. Alphabits

    Memory wire

    Here's a related question about memory wire, or nitinol wire. I'm looking for something that is difficult to cut, and extremely flexible. I'm thinking that the nitinol wire meets my flexibility requirements, but I can't find a spec sheet that will tell me whether it will be easy to cut or not...
  3. Alphabits

    Shim washer/extremely thin stand-off source

    Thanks for all the replies people! bokers.com looks like an option, as might be a chemical etching process. We have another part made that way already, it didn't occur to me that it would make sense for this one as well. I'll look into it.
  4. Alphabits

    Shim washer/extremely thin stand-off source

    Greetings, I have need for a shim washer of 1" OD, and ideally 0.9" ID, but possibly as small as 0.85" ID. Any thickness from 0.005" to 0.010" would work. Material is unimportant, other than it be reasonably tough and bondable with cyanoacrylate adhesive (loc-tite, crazy-glue, etc.). This...
  5. Alphabits

    Giving Notice of Leaving

    Companies will always say they want you to start yesterday. After all, the sooner you start, the sooner you can get work done that they need done. But in reality, the company can always wait until you're available, if you're the best person for the role. The local labour laws in BC (canada)...
  6. Alphabits

    Listing current employer on resume

    I'm in a similar situation myself, although I haven't observed any unethical practises, i'd like to move on to another company as i'm just getting the wrong vibe from this one. I've put my current employer on my resume, but i'm not offering any info other than what you'd find on the company's...
  7. Alphabits

    Making Wrist Alarm Louder

    An update in case any of you are following along (or perhaps in case someone is searching for similar data in the future). We took apart my Timex watch today and hooked it up to the silly-scope. Turns out, Greg is right, they don't use a pure tone at all. It seems they charge up a coil, and...
  8. Alphabits

    Making Wrist Alarm Louder

    The simple answer (IRstuff) is, i've taken apart many watches in the past and already know how a watch back is constructed, at least in as much detail as I could get by taking one apart. I know the buzzer is stuck to the back fairly rigidly. What I don't know is what timex has done that makes...
  9. Alphabits

    Making Wrist Alarm Louder

    Hi all, I'm assisting with the design of a wrist-based alarm that must fit into a wrist-watch enclosure. We've sourced a wristwatch case (plastic with rubber-like overmold and integrated rubber strap) that has a screw-on metal (stainless) back. We've also sourced the largest piezo-electric...

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