Even with the inexpensive甚至与廉价 USB fans的USB风扇 available sometimes it’s just more fun to build one yourself.可有时它只是更有趣，以建立一个自己。 Here is a quick video这里是一个快速的视频 tutorial补习 whereby you need two CDs, a motor, some cable a lighter and a little time and you’ll be cool (although not looking) at the click of a USB connection.让您需要两个光碟，汽车，一些有线一个打火机和少许时间，和您冷静（虽然不是看）点击一个USB连接。