Replacement auger for a WellToBe Pet Feeder

The auger on my dual-bowl WellToBe Pet Feeder lost all of its vanes, rendering it non-functional. I designed this part to print in 2 pieces, so that it requires no supports. The alignment pin serves to hold the top and bottom pieces in place so that they can be glued.

The pet feeder looks like this:

I printed mine at a 0.20mm layer height with 6 perimeters.