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I’ve spent the past few days refining the design of my
Technic clock. I’ve managed to
convert it to electric drive (using a 9V micro motor) which enabled me to get
rid of the 2-lb. weight and string. This made it possible to further reduce the
size of the timekeeping mechanism while greatly improving its reliability. The
result is a fully functional electric clock made from 100% unmodified LEGO
parts.
<
The clock stands about 17 inches tall, and can be powered from a train regulator
or a battery box. Without the dangling weight, this MOC can easily stand on the
mantlepiece without fear that it will take a sudden plunge to the floor.
I’m still tweaking the timing, but it is already able to keep time within a few
minutes per hour, and has run for several hours at a stretch with no human
intervention. As an added bonus, the clock time can be set (even while the
clock is running) simply by turning the hands to the desired time.
Must sleep now...
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Message has 2 Replies:
 | | Re: 100% LEGO Technic Clock with Electric Drive
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| Not content with a clock mechanism that was 12 studs wide, I completely redesigned the reduction geartrain yesterday, resulting in a mechanism that is only 8 studs wide. There is much less friction in this new design than in the previous one, so it (...) (18 years ago, 21-Nov-06, to lugnet.technic, FTX)
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