However, there’s something rugged and individualist about producing your own rotating components. [Maciej Nowak] demonstrates just how to produce your own gears with a homemade cutting tool.

You might not even want your TV to rotate. But we can think of lots of reasons we might make a plywood gear train and this project is as good an example of that as any. The motor apparently had ...

Many cars have a rev counter that tells the driver how fast the engine is spinning. A driver gear rotating at 60 rpm is connected to a gear arrangement with a ratio of 60:20. Calculate the output ...