Bambu AMS Helical Gear

I'm not sure how this happened, but the helical gear that meshes with the worm gear on the Bambu AMS first stage feeder stripped out. When trying to feed filament, the worm gear would just grind against the helical gear and made a big mess of things.

The material used on these yellow gears is pretty soft. Given that all of the rotational mass for a 1KG spool is placed right on this gear set, I'm surprised more people haven't experienced this.

Since this gear seems to have a lot of sheer stresses, print this with nylon carbon fiber, like PA-CF or PAHT-CF from Bambu. And since it's pretty tiny, I printed with the finest layer height, 0.08mm with 100% infill. Also include supports and print with the smallest hub facing down on the build plate. The two sides are different on this gear. If you have the front of the feeder facing you, the left side of the gear has a 2.5mm hub. You can also see 3 bumps on the yellow gear, indicating the left side. The right side has a 2.0mm hu