Computer fan speed controller
This was supposed to be a simple “fan speed controller board needs an enclosure” kind of a project, but I got carried away a bit thanks to enclosure options available at hand.. Or moreover, the lack of them. Put short, I chose to recycle a old CD drive to be used as enclosure for a dual fan speed controller.
Circuit-wise, there isn’t anything special going on. Just a on/off switch that feeds a power indicator LED and a potentiometer to control what amount of voltage gets sent to the fan. Double this for two independantly controllable fan outputs, of course. I decided to locate the parts on a piece of stripe-plated perfboard so, that the buttons on the bezel of the CD drive could be used for the on/off switches.
Other than that, the build was more about test-fitting the board with the CD drive bezel over and over again until a sturdy enough solution was reached. Roll ze piczts :)