I needed a rotational speed controller, if you were wondering
1 point
For getting higher rotational speed you can also chain large and small cogwheels alternately. A big one on the input shaft connected to a small one, the small one via shaft to another big one connected to a small one and so forth.
2 points
2 points
It’s like that meme where it’s the guy saying he just needs that one piece, and the piece is labeled “a billion dollars”