Here's a little project I'm working on in my free time.
Im trying to create a huge mechanical city which is powered by water, wind, sun and geothermal energy.
Gearsystem Control:
Gear 64 is the gear which drive the gearsystem (I selected it). Rotate this gear around the z-axis to move the other geras. Every gear has a transformation constraint which gets and calculates the rotation from gear 64.
Sketchfab 3D and Animation preview
Demo Video:
https://www.youtube.com/watch?v=xV4CKzHrJf8&feature=youtu.be
WOW! Awesome job!