I needed something to turn quite slowly as part of a computer case mod, so I've hacked up a pc fan that runs at 700rpm and need to use it to make something turn at about 1/20th of that speed.
The "something" is two small cardboard drums so they're very light. But how ever I get them to turn needs to be as quiet as possible. The reason for using a fan instead of a small motor was noise; the little motor I have that already spins at the right speed is too loud.
I'm so new to all this though, I don't really know what to try. Looking around online it seems gears or a belt are options, although I wonder if gears would be quite noisy.
Any advice or thoughts at all would be a HUGE help. Thanks!