Fish Hammer

Fish Hammer


People love to break ocean stuff. The Fish Hammer empowers fish to break people stuff.

As Smashie swims around the aquarium, his position is tracked with a webcam, using software written in C++ using openFrameworks and OpenCV. The hammer follows him around the tank on a carriage powered by an Applied Motion stepper motor. The software calculates the velocity the motor needs to be moving using a PID algorithm that takes the motor’s encoder position as input and gives a velocity as output. This velocity is then sent over UDP to the stepper motor. The hammer head drops based on the slow rotation of a cam that the hammer rests on.

The Fish Hammer was designed using Autodesk Fusion 360 and Autodesk Inventor. Instructions on how to build your very own Fish Hammer actuation device are here. This project was created as part of Autodesk’s awesome artist in residence program.

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