Those are almost the exact same thing - Lavet stepper clock movements. The difference is that they're geared for the coil to be driven at 8 Hz instead of 1 Hz. That gives them the appearance of being smoother. Of…
That would necessitate changing the gearing ratio between the hands, which is beyond the scope of this project.
FWIW I also sell a GPS clock. It's accurate to within 200 microseconds and has a 100 ms display granularity (that is, it has a 10th of a second digit).
One does what one can. :D
I'll just add that there are also non-novelty firmwares available - alternate timebase clocks. I have Martian, Sidereal, Tidal, Lunar, weekly, annual and quadrennial clocks.
Alas, there are 3 rules of (ordinary) Lavet stepper clock movements: 1. You can't make it go the opposite direction. 2. You can't change the gearing ratio between the hands. 3. You can't know where the hands are…
Generally the movements come with a rubber gasket that you're supposed to put over the shaft before attaching it to the back of the face. The rubber cuts down on the ticking noise. Of course, if you buy a Crazy Clock…
I'm the guy behind the project, and I'd like to thank cbsks for posting it. If anyone has questions, please feel free to hit me up on Twitter (@nwsayer) or post on the hackaday.io project page…
Those are almost the exact same thing - Lavet stepper clock movements. The difference is that they're geared for the coil to be driven at 8 Hz instead of 1 Hz. That gives them the appearance of being smoother. Of…
That would necessitate changing the gearing ratio between the hands, which is beyond the scope of this project.
FWIW I also sell a GPS clock. It's accurate to within 200 microseconds and has a 100 ms display granularity (that is, it has a 10th of a second digit).
One does what one can. :D
I'll just add that there are also non-novelty firmwares available - alternate timebase clocks. I have Martian, Sidereal, Tidal, Lunar, weekly, annual and quadrennial clocks.
Alas, there are 3 rules of (ordinary) Lavet stepper clock movements: 1. You can't make it go the opposite direction. 2. You can't change the gearing ratio between the hands. 3. You can't know where the hands are…
Generally the movements come with a rubber gasket that you're supposed to put over the shaft before attaching it to the back of the face. The rubber cuts down on the ticking noise. Of course, if you buy a Crazy Clock…
I'm the guy behind the project, and I'd like to thank cbsks for posting it. If anyone has questions, please feel free to hit me up on Twitter (@nwsayer) or post on the hackaday.io project page…