Nice and clean
Great work. My favourite is the second one.
Like the second one slightly better, nice job.
There is a crispness to the mechanism and design on the second one …
The first one has pixel-ation on the spring/flywheel teeth, but you should just remove the cog teeth (they’re not supposed to be there).
I’m proceeding slowly … re-discovering calculus that i had forgotten …
Updated version available here: Skeleton, but with working gears / actions