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You can't go back in time, but you can make time go back. - Link
Reverse Time Clock Modification
Posted by Bre Pettis |
Sep 2, 2006 05:20 PM
DIY Projects |
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The small coil of copper wire is not, as they would have you believe, any manner of magnet.
It's a timing coil. Modern watchmaking 101 - Don't screw with the timing coil (pull at it, pluck it, mess with it) lest you want your watch to not keep proper time.
Soldering the coil to fix it is a common solution, but you may find the watch gaining time over a year or more.
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This is a great hack. I did this for my clock. At first you might be tempted to creat a reverse image of the clocc face. It's more fun if you don't. Someone will sit down. They'll be talking to you. They will look at the clock. They will notice that it is off. Then in a short while, they will notice that it is going backwards. If the clockface is reversed, it's too obvious and not as fun.
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AWESOME some1 should do that to the clock were they work lol
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I still don't feel I comfortably understand how this hack works, anyone have some more information on how a clock of this kind works? What effect would desoldering the timing coil and reversing the connections have? Thanks
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The hack seems to be incorrect, the coil, together with the metal plate, induced a magnetic flux which causes the gear, a permanent magnet, to rotate, hence if you happen reverse the polarity of the connection to the coil, or simply mirror the position as it stands, the direction of rotation is reverse. Also the actuation of the gear should be controlled by the clock oscillator, which presumably is a simple pulsing of the coil, so a mod on the coil is harmless and I doubt it has anything to do with the metal plate.
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NotBlaine:
If that's the case(and IIRC, you are likely correct..go figure I have a friend who's a clockmaker and I can't reach him to verify) then there's the question of how the hack works by flipping that metal plate?
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I had concerns about how the reversing of the metal plate could cause the reversal of the motor rotation... but it does. Perhaps it's the same principle that causes a "shaded pole AC motor" to always start in the right direction. I did the modification today on a cheap (
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I had concerns about how the reversing of the metal plate could cause the reversal of the motor rotation... but it does. Perhaps the plate is magnetized. Perhaps there is an offset in the positions of the poles. Perhaps it's the same principle that causes a "shaded pole AC motor" to always start in the right direction. In any case I did the modification today on a cheap (less than $4) wall clock from Walmart and it is now happily running counter-clockwise.
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