I like the design
maybe adding a way to increase bench size could be great
Also I feel that a inertia combo could be great ( a wheel directly connected to more than 1 other wheel ) it could force to more think of the placement
I think bench size upgrade could work in very well, especially since the gears do get pretty large. On some kind of combo effect on chaining the gears, I'll see if I can work out the math and incorporate it in! The combo effect might actually give use to smaller gears towards the end as well. Thank you for playing my game!!