This is mesmerizing - I've built a spinning square wave ! 

Hi,
I saw the Square Wave a few weeks ago, and at that time, it seemed impossible to make without specific tools. Now, I have figured it out, and built a device that helped me create a Square Wave comparable to the one I had seen before.
IG:
- / charlies_studio_
#metalwork #tools #handcraft #garage #hobby #phisics #fun