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Wyze Robot Vacuum Final Drive Gear (wheels)
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A new final drive gear for the robot vacuum's drive train
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Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
My robot managed to break some teeth off a drive gear after a bit of a tumble and would only go in circles after that. Here's a new final drive gear to fix it. This (and the original) is a press-fit onto the axle, so you'll need either an arbor press or a punch and hammer (and some finesse), to do the replacement. The 3MF includes a couple washers/spacers that probably aren't strictly needed, but they get the replacement gear closer to the same dimensions as the original. Place one on either side of the gear when installing.
- press the axle out of the wheel (be careful not to damage the outer housing of the gearbox.
- remove the gear and press the axle out of the gear
- press the new gear onto the axle, aligning it to the splines where the original gear was originally located.
- re-insert the gear into the gearbox, and press the axle back into the wheel (be sure to align the splines before pressing it back together
- ensure the wheel/axle has minimal play, but still spins freely
- add some white lithium grease to the new gear (you can probably scrape enough excess off the inside of the gearbox walls, or buy some – it's cheap)
- reassemble everything and enjoy your robot's newfound mobility!