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June 2, 2014 05:43 am PDT

HOWTO demo your homebrew laser CNC without zappingbystanders

Do you have a home-made, high-powered laser that you fear demonstrating because you might hurt someone? Here's the solution: fit it to a pen-holder/plotter derived from Evil Mad Scientist Labs's Watercolorbot. Read the rest


Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/CLEkM174qhI/howto-demo-your-homebrew-laser.html

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