Here’s a nice hack that shows you how to convert your outdated scanner into a cheapo digital camera that can “scan” its surroundings. Pretty interesting images result from the process.
Building a scanning camera from a flatbed scanner
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I’m sorry but this is just soooooooooo old.
Check out some of the other stuff too.
http://www.sentex.net/~mwandel/
Make sure to go into the tech section and take a look at the home made printer, that guy is amazing.