UPDATE ( 17-04-2014 )
Thank you all for the very nice comments. They really mean a lot!
I've attached the file I used to laser cut the parts in a couple of different file formats, so you should be able to open at least one of them. Some of the parts are redundant because I changed the design a bit after I had it cut.
It's going to take a while for me to get a video of the machine, but in the meantime I've made this animation
The gears are all programmed to move as they do in real life, so it's pretty close to the actual thing.
My older brother turned 30 recently, and I decided I would make a special present for him.
He practices biodynamic farming, a field (no pun intended) where the phase of the Moon is considered important in deciding when to plant and harvest crops.
I figured a clock that displays the Moon's phase would be a fun thing to make for him. That would, however, be far too easy. I therefore gave myself the challenge to make a machine that would also show the rise and set times of the Moon - a Moon Machine.
This is my first instructable so please bear with me as I unfortunately forgot to take any pictures during the making of the machine. I suppose illustrations will have to make do.