I think there is a slight flaw in slowing the drive to half rate. The
hour hand could then go around once in 24 hours, but the minute and
second hand movement is halved too. Rather non-intuitive to read unless
you only put on the hour hand and make a new 24-hour dial face.
On 1/20/2014 5:57 PM, Robert LaJeunesse wrote:
Since most of those cheapo movements are a simple single-coil motor, energized with alternating
polarity short pulses, it would seem that there is no need for a "24 hour" movement. You
can just have your micro pulse it twice the normal period, but with the same as normal pulse
width(s). Check out the movement teardown in "lunchtime clock" at Instructables.com -
http://www.instructables.com/id/Lunchtime-Clock/
Bob LaJeunesse
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