Hello Paul,

Nice post. Thanks for sharing.
You can also order gears via aliexpress. Unfortunately you can't buy them cheap in China like I do, but should be much cheaper than Grizzly - chinese gears.
I am presently buying 1.5 module gears for my next project - external lathe headstock gearbox. 16 gears - 4 shafts - 18 speeds. These metric gears are coming as follows: M1 - width 10 mm, M1.5 - width 15 mm, M2 - width 20 mm and so on.

Regards
LMMasterMariner