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Subject: 
Wind-Up Clock
Newsgroups: 
lugnet.technic
Date: 
Wed, 6 Oct 2010 16:57:33 GMT
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I wanted to create a clock that did not rely on weights for the drive. I connected two pull-back motors to create a “wind-up” clock that indicates minutes and seconds and will run for about 30 minutes on one winding.



More pictures, links and a video of the clock running are here



Message has 3 Replies:
  Re: Wind-Up Clock
 
(...) Aren't you a bit obsessed by time? ;o) Very nice clock! I don't see how you wind-up the pull back motors - perhaps a true windup motor such as (URL) would have been easier to use? Philo (14 years ago, 7-Oct-10, to lugnet.technic)
  Re: Wind-Up Clock
 
This is really nice. Eric (...) (14 years ago, 8-Oct-10, to lugnet.technic, FTX)
  Re: Wind-Up Clock
 
(...) Amazing - congratulations! I would not have expected anything like 30 minutes to be possible. That's also a neat solution to the concentric hands problem. (14 years ago, 26-Nov-10, to lugnet.technic, FTX)

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