Solar System Model (Orrery)

I’m wondering if anyone has ever built a gear driven model of the solar system (apparently called an Orrery)? I am a huge physics/space nerd and would love to build one, but i haven’t seen anything that is carved that looks doable. Not sure if anyone has any particular experience with this kind of thing.

Not mine, just an example (linked below)

A few resources:

I’ll try to post some updates as I try to wrap my brain around how gears work.


I have one built out of Legos, love the idea. I think I would do brass or some other metal I could then apply a patina to make it look authentic…