Introduction
An interactive 3D model of a rack and pinion gear.
Additional Resources
https://en.wikipedia.org/wiki/Rack_and_pinion
https://khkgears.net/new/gear_rack.html
https://www.explainthatstuff.com/gears.html
https://www.thomasnet.com/articles/machinery-tools-supplies/rack-and-pinion-gears