Servo Dobber

This is a single switch activated servo dobber for painting.

3D Printer (Black PLA Filament)

4 AA Batteries

4 AA Battery Housing with 2.1mm plug

Arduino Uno

Assorted jumper wires

Auxiliary Cord

Auxiliary Cord Button

Servomotor with attachments (horns)

Glue

Tape

Print all .stl files and upload the code to the Arduino. Feed the servo wires through the gap in the housing. Using color-matching jumper wires, connect the red cord to the 5V power on the Arduino, the black wire to ground, and the last to digital pin 9. Lastly, through the left side opening on the housing, connect the power and ground input from the battery housing to the power inputs on the Arduino.

Next, strip and cut the plug end of the Aux cord, revealing the black and red wires. Feed then connect the black wire to ground and the red to digital pin 7 on the Arduino, through the opening on the left side of the housing. Plug the button into the aux receiver.

Using the single horn attachment and provided screws, connect the printed arm to the head of the servo making sure it is placed in the upright orientation. Adjustments will most likely be necessary to ensure the arm turns to the desired height, this will depend on the application.

Lastly, secure the battery housing to the lid and place it into position to cover the Arduino and wires. Secure with tape/glue.