Automatic Watch Winder

Automatic Watches are great because they do not need batteries; but to wind them you have to wear them! This watch winder is capable of winding three automatic watches so they are set to the correct date and time when you are ready to wear them.

The geometry of the watch winder was driven by the spare parts that I had in inventory including a NEMA 17 motor, an Easy Driver, some bearings, 8mm rod, velcro, 3mm machine screws, Arduino Uno, Relay, Fan (cool the driver) and 2020 from an old 3d printer (I don't have room for).

I am still working on this project (which was more challenging than anticipated) so some elements have been refined, and other elements still need to be tuned and refined.

Challenges Addressed;
1) To be able to hold watches of various bracelet sizes - the watch holders are spring loaded
2) Noise - I was able to reduce gear noise significantly by having two flange bearings each end shaft. The original design was going to have side bearings to keep