Update README.md

FabLight/README.md

 # FabLight
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+http://cba.mit.edu/tools/display/?type=tool&id=fablight_3000_laser_cutter
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+Machining time: ~5 min
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+Cost of machine: sheet only machine with the 3000 laser is around $80,000, and the tube & sheet is around $90,000
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+Machine settings:
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+![Fablight settings](Fablight_settings.jpg)
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+Sample photos:
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+![fablight 1](Fablight_01.jpg)
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+![fablight 3](Fablight_03.JPG)
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+![fablight 5](Fablight_05.JPG)
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+After burr removal 
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+![fablight 6](Fablight_06.jpg)
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+The brown seen on the edges of the piece are burn marks where the machine cut. 
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+![fablight 7](Fablight_7.JPG)
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+![fablight 8](Fablight_08.JPG)