I built this gear to replace the 31 Tooth to 11 Tooth Gear in my Shark Robot Vacuum. I recommend a filament printer as I have been told, but not verified that it would hold better than a resin-printed part. As of uploading, the gear that I printed has lasted for a week with everyday usage.

The bottom of the 31 Tooth Gear will need a small 7/32in or 5.5mm hole drilled in the bottom for the casing to close entirely.