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Micah made this really amazing laser scanner from a few scavenged hard drives and a Parallax Propeller chip. The initial results are amazing considering how fast the actuators have to be to crate an image.

My latest tinkery hardware and embedded systems project is a homebrew laser scanner. You know, the kind you see at planetariums- sweep a laser beam around on the wall really fast, and draw vector graphics. Commercial laser scanners have been around for decades now, but buying a complete system is still really pricy, even on eBay. Besides, where’s the fun in that?

Read more about Making hard disk laser scanner

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