I take apart printers. There’s often a lot of useful gears, belts, brushed motors, and such within them. I took one apart nearly a year ago, and had a motor sitting in a basket of pens on my desk ever since. I was recently fidgeting with it however, and had the idea to attach an LED to the terminals of the motor. When I spun the motor the correct direction, wonder of wonders, it lit up!
Fast forward a few weeks. I was playing with my free flashlight once again, and had the idea to attach some sort of rubber band and winding system.
I was about 5 minutes into it when I decided to start taking pictures. Here’s what I did after that point.
I installed a ratcheting lock system on the side so that the rubber band could be wound without the motor turning.
I could then install the rubber band and the crank system.
The rubber band simply wraps around part of the motor’s gear, and because of the teeth, it stays on fairly well.
The crank is simply a piece of galvanized wire bent to have a hook and a crank. It is passed through a wood block so that it doesn’t wear down the foam board.
Here it is all closed up.
And the post would be quite anticlamactic without a video:
So, is it useful? Not really. But it took me all of 10 minutes, and it’s rather funny to use. And hey, it might even demonstrate a bit of creativity and ingenuity.