First things first, we need to get a printer. Make sure this printer is expendable because we are going to do a couple of things to it. MaterialsLED of any color-"Light Emitting Diode"WireAA battery holder 2 spaces2 AA batteriesResistor 150ΩTools Alligator Clips Configure the Printer Ok now you s...By: HarrisonF
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from Instructables: exploring - technology - robots http://www.instructables.com/id/Light-Printer/
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