Fish Hammer actuation device? They’re a dime a dozen these days! We jest, of course. This build and documentation from instructables suer Neil Mendoza is smashing, to say the least.
This Instructable will show you, in detail, how to construct a track-based curvilinear motion system. These systems are the most common type of drive mechanism for fish hammers (the part that makes the hammer move around the aquarium). However, the same mechanism can be employed to move anything along a curved track. For example, a motion control system for cameras.
If you do decide that you want to actuate a fish controlled hammer rather than any other object, below is an overview of some of the things that you might need to consider…
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.