I like the concept! Only issues I had was that it was a bit dark (so I actually lost a gear on the ground), and that the physics allow you to glitch out gears a bit (e.g. while one gear was falling, I accidentally picked up a different gear, which sent the first gear flying off the screen and I had to restart). But it is a game jam, so these minor things aren't too important.
I loved the concept, and it matches the theme very nicely. The lighting and background hum of machinery creates a nice atmosphere.
Good job!