D: Wow that's a lot of teeth. Seems like a lot of time to put in for a single gear (especially with the non-automatic indexing!) but if it's for the learning opportunity I can respect that.
The things I've done for the learning opportunity...
Your results look really good! Love the pictures of the lathe and setups, lots of stuff covered in the making of a single gear.
I've always wanted to set up a gear hobber or something similar so I can make my own gears without having to worry about the hand indexing and all that.