At first I took the rim home and spray panted it to make it look a little bit better.

There I also made the "shank" (the axle).

Because it was too long, I cut it shorter and welded a screw to it,... to fasten it to the wall (with a dry wall plug).

The next day my colleague Willi did the assembly with the leds and the main part,... the soldering, while I copied some Ardoino libraries together to get the clock running wiht a NTPClient.

The last part was simply to put the tire on and find a good spot to mount it.