Instead of buying one of those expensive Counterfeit Money detectors ,make your own using a couple of Ultraviolet LED’s a coin cell battery and 3D print the parts attached in Step 2, which fits nice and snug in your Wallet/Purse.The two 3D printed the parts are about 4 credit cards thick and doubl...By: CarmelitoAndrade
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from Instructables: exploring - technology - robots http://ift.tt/1yMoRe4
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