Mega clock

As a birthday present for my wife i built a giant semi mechanical clock the Mega Clock. You can see a illustration on the right. The clock is driven by a stepper motor and gears transmit the movement to the pointers. As a time reference i use the well known DCF77 receiver which is available in europe. Doing so i dont have to set the clock manually and i dont rely on the accuracy of the arduino clock source.

The whole building process can be seen in some Videos on YouTube:

Design Files Download

CAD: megaclock_cad_step

Excel calculator: excel clock calculator

Arduino Software: megaclock software

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