Doodlebot Using a DC Motor

This project creates a robot using a paper cup and dc motor, that moves across a piece of paper to create doodles.

This works by attaching a motor to an offset weight, which for us is the bottlecap. Then, when the motor spins, it results in the robot vibrating and moving. Try experimenting with different numbers of markers, heights, and colors to create different patterns!

1x Paper cup

3x Markers

1x 1.5V battery (+ battery holder)

1x Motor

1x Bottlecap (any type should work-- I used one from a milk bottle)

Paper

Hot glue

Tape three markers to the inside of your cup, so that half of each sticks out above the rim.

Flip your cup over. Using hot glue or tape, attach your battery and motor to the top of the cup. They should be positioned on opposite sides so the cup maintains balance.

Hot glue the top of the bottlecap to the end of the motor. This will act as a counterweight, and allows our doodle bot to vibrate and move.

Connect the positive wire of the battery holder to one end of the motor. Connect the negative wire to the other end, and secure with tape, if needed. Your doodle bot should start moving. Uncap your markers and place it on a piece of paper to create some art!