by ekaggrat, published
update 1(2015/2/6) : added assembly sequence sheet .
this is a simple clock based on a single geared stepper motor which i found in surplus 10 for a dollar... The motor is basically a 1:30 geared motor working at 12v with a 3mm shaft. The single motor is driven by a attiny2313 and uln2803 circuit with the coded written in arduino ide. The single motor moves a gear train which in turn moves the minute ring and hour ring. The attiny pulses the motor every minute to move the minute wheel and the hour wheel.
kits at ekaggratatgmaildotcom
print all the parts at minimum 0.2mm layer height
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holo clock by ekaggrat is licensed under the Creative Commons - Attribution - Share Alike license.
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