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counting the number of turns

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  • #16
    It was a battery operated analogue wall clock with a traditional circular face, not a digital style or the old 'flick' style. These clocks are as cheap as dirt, I didn't even have to go out and buy one, it was in the lounge room all along.
    It's just a matter of removing the single AA battery and yanking off the seconds hand. This exposes the small shaft in the centre. Just have a quick look at the centre shaft and it's easy enough to work out from there.
    BHL Guitar Technologies - hand made guitar plectrums and more.
    https://www.facebook.com/BHL.Guitar.Technologies

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    • #17
      Originally posted by Brock Little View Post
      It was a battery operated analogue wall clock with a traditional circular face, not a digital style or the old 'flick' style. These clocks are as cheap as dirt, I didn't even have to go out and buy one, it was in the lounge room all along.
      It's just a matter of removing the single AA battery and yanking off the seconds hand. This exposes the small shaft in the centre. Just have a quick look at the centre shaft and it's easy enough to work out from there.
      Right, I got all that.... but how did you make it go 300 RPM? The battery powered clocks use a quartz crystal to set the speed. Second hands on clocks travel at 1 RPM.
      It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. — Albert Einstein


      http://coneyislandguitars.com
      www.soundcloud.com/davidravenmoon

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      • #18
        I suspect he was using the clock as a counter, driven by the winder.
        sigpic Dyed in the wool

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        • #19
          Originally posted by Spence View Post
          I suspect he was using the clock as a counter, driven by the winder.
          Sorry guys. I thought that was kinda obvious.
          The idea came to me because you can wind the hands of these clocks to set the time. by removing the seconds hand then you have the central shaft exposed and you have the means to count each revolution by running an extension from the winder.
          I was in the process of making a reducer for the crappy old winder i was using so i could get higher speeds from the winder without having to run ye olde clock at warp speeds. Then a better winder made itself available (read: better funds became available for new winder).
          It's not very hi tech, but as has been implied, nothing inspires innovation like a shallow pocket.
          BHL Guitar Technologies - hand made guitar plectrums and more.
          https://www.facebook.com/BHL.Guitar.Technologies

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          • #20
            Originally posted by Brock Little View Post
            Sorry guys. I thought that was kinda obvious.
            Ah, now I see it...

            Nothing is ever obvious to me! Not even the obvious... the obtuse I see with no problem however!


            Originally posted by Brock Little View Post
            ...nothing inspires innovation like a shallow pocket.
            I agree. I've invented some cool stuff because I couldn't afford to go out and buy something... I started building basses because I couldn't afford what I wanted.. only to spend much more on machines!
            It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. — Albert Einstein


            http://coneyislandguitars.com
            www.soundcloud.com/davidravenmoon

            Comment

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