Let’s face it, it is always nice to get a fist pump from a friend after a small victory at work. What if you don’t have any friends? What if they don’t like you that much? This automatic fist bump machine has you covered. Even when you are underappreciated at work, this little cute machine will be there for you.
The 3D printed fist is moved by a servo attached to a rack and pinion mechanism. An ultrasonic range finder detects when you place your hand near the machine, and the rest is history. A fun project for Arduino fans.