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"Fancy seeing your mug enlarged to halftone-processed heights? You're in luck, because Finnish modder Metalfusion has a homebrew solution for those Wall Street Journal-style hedcut delusions. Using a specially designed image conversion program, the DIY hobbyist tranforms .jpg, .gif or .png files into DXF-formatted dot patterns of varying density. The resulting images are then fed directly into a CNC machine where a drill is left to make the wood-carved magic happen. Need some visual confirmation of this awesome feat, then head past the break for a video demo of this old-timey optical illusion."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2011/07/30/cnc-mod-carves-dot-drawing-portraits-for-your-living-room-walls/>