Dual Automatic Watch Winder
![IMG_20170628_165030.jpg](/proxy/?url=https://content.instructables.com/F90/85G4/J4G50886/F9085G4J4G50886.jpg&filename=IMG_20170628_165030.jpg)
I have been always wondering why the watch winder devices are so expensive. Such a tool is, however, necessary especially for guys like me who don't wear their watch everyday. So, I decided to make one of my own, using an Arduino controller.
The basic idea is to use a stepper motor in order to rotate my watches. Moreover, by using the Arduino we can control the rotation frequency.
Here are the basic components I have used:
The Schematics
![watch_winder_bb.png](/proxy/?url=https://content.instructables.com/F49/ZY88/J4G50E7L/F49ZY88J4G50E7L.png&filename=watch_winder_bb.png)
We note that we can use the same power supply (12VDC) for both the Arduino and the EasyDriver. For the Arduino, however, we have to use a step down module in order to achieve an output voltage of 8VDC. Finally, the Arduino is powered via the VIN pin.
Programming the Arduino
I use the following simple code in order to rotate the stepper motor in both directions.
int smDirectionPin = 3; //Direction int smStepPin = 2; //Stepper void setup(){ pinMode(smDirectionPin, OUTPUT); pinMode(smStepPin, OUTPUT); Serial.begin(9600); } void loop(){ digitalWrite(smDirectionPin, HIGH); //Set the rotation direction (HIGH is clockwise). /*Turns the motor 20000 steps*/ for (int i = 0; i < 20000; i++){ digitalWrite(smStepPin, HIGH); delayMicroseconds(800); digitalWrite(smStepPin, LOW); delayMicroseconds(800); } delay(1000); //Pauses for a second digitalWrite(smDirectionPin, LOW); //Rotation direction (LOW is counter-clockwise). for (int i = 0; i < 20000; i++){ digitalWrite(smStepPin, HIGH); delayMicroseconds(800); digitalWrite(smStepPin, LOW); delayMicroseconds(800); } delay(1000); }
Winding Your Watches
![Dual automatic watch winder](/proxy/?url=https://content.instructables.com/F7Y/TM3V/JHKTXTB4/F7YTM3VJHKTXTB4.jpg&filename=Dual automatic watch winder)
![IMG_20170629_115840.jpg](/proxy/?url=https://content.instructables.com/FFS/A7WE/J4G53XJY/FFSA7WEJ4G53XJY.jpg&filename=IMG_20170629_115840.jpg)
The watch winder is finally ready. Time to wind your watches!