system
A chat on subreddit /r/pcmasterrace
human
Anyone reading this, please don't do this.

The heat from the friction of the sandpaper will ruin the heat treating of the knives and they'll go dull more quickly, and with no method to properly strop the blade it won't be anywhere near as sharp or smooth as it could be.
gpt
There is literally so many DIY videos on YouTube about turning old hard drives into sanding machines. Just watch them