3D printed kinetic Servo clock

Somewhat based on, or inspired from, the excellent Plotclock (thanks Joo : http://www.thingiverse.com/thing:248009), here is my kinetic servo clock !

See it working here: https://youtu.be/nNygre-98G0

Motion is obtained from two RC servos whose arms are connected in a W shape. At the middle of the W sits a screw able to push the minutes arm via a pad. The minutes arm itself can push the hours arm ...

An ESP8266 embeds all the needed software to make it a "smart clock" ! The ESP8266 is a wifi based microcontroler that can be easily programmed from an arduino IDE as if it where an arduino. The clock being connected to the internet (it is an IOT smart clock) it can get the time from an NTP server.
The clock is then able to automatically set the arms at the right time, move the arms every minute and perfom the adequate maneuvers to keep the arms in the right position.

it is then really fun to see it doing its mesmerizing job. I must admit it is also a bit noisy, but so fun tha