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: