This is a project I've been working on is called the U.S.C.Etch (pronounced you-sketch) which is short for Universal Surface Compound Etcher, and is a tool designed to etch on any surface using chemical free, micro abrasive etchant. It's based on an instructable for a glass etching tool, that I'd cr...By: antagonizer
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from Instructables: exploring - technology - robots http://ift.tt/1xD7XLV
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