HDD Grinder Mod
 

Few words for the safety. Spinning things are often more or less dangerous and so is the case with this thing. I suggest you to use gloves, safety glasses and a bit of common sense when using this apparatus. HDDs have only tiny stepper motors, so this thing doesn't have much torgue. Nevertheless it runs fast enought to slit fingertips open and cause nasty cuts. Be careful!

http://metku.net/index.html?sect=vie...nder/index_eng