The Butter Robot
"What is my purpose?" I threw together a real-life replica of the Butter Robot from Rick and Morty. The wiring is a mess, but the existential dread is fully functional.
View Code on GitHubI originally thought about 3D printing the entire chassis, but ended up just printing the claw. The rest of the body is literally just old Lego bricks, electrical tape, and a few micro servos I had lying around on my desk.
An ESP32 handles all the logic, driving the three servos to articulate the head and arms. Even though the hardware is completely jury-rigged, I spent most of the time tuning the actual code. I dialed in the servo sweep timing specifically to mimic that slow, depressed droop he does in the show when he realizes his only purpose in life is passing butter.
The Parts List
- 1x ESP32 Microcontroller
- 1x Custom 3D Printed Claw
- 2x MG90 Servos
- 1x SG90 Servo
- A handful of Legos
- Way too much electrical tape