Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5100785.

In the process of creating an automatic dog-biscuit feeder, I realised the auger STLs available didn't seem to fit my needs; nor did they appear 'strong'. After reading various feedback with the already-existing auger models, I designed this with strength in mind.

Print in the orientation in the STL file, with supports on for buildplate only. It's the strongest build orientation for functionality, and you can always sand or scrape it smoother if needed.

I printed mine with 6 walls, top, bottom and sides. 40% infill, 0.2mm layer height.