I was looking up a few details on gear design and terminology and stumbled upon this pdf
http://www.khkgears.co.jp/kr/gear_te...ide_060817.pdf
It struck me as a pretty awesome introduction to gears, terminology, and manufacturing technology. Figured sharing it here would be my best way to share this find.
Somewhere, I'm sure, there is some kind of "collective favorites" of online resources for stuff like this.
Jason