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The Mechanical Philosopher writes –

“I went on a creative jag this week, playing with fabricating earrings on the CNC mill. Milling a piece of aluminum flat to adhere the silver sheet to. 24 ga. (.019″) sterling silver sheet. I use 3M carpet tape to adhere the silver to the aluminum, after cleaning both surfaces with rubbing alcohol. Milling a pair of earrings. I first used a 60 degree engraving cutter to do the text, then a 1/32″ endmill to drill and profile the earrings.”Link.