Machining a Titanium Engagement Ring
Cool story from the MAKE Flickr pool: Alex French designed and carefully machined a torsion-set engagement ring to propose to his longtime sweetheart, Colleen. He studied up, tooled up with a Sherline 4000A hobby lathe/mill/drill press combo, then turned, bored, and milled the ring before setting the stone, himself, all while working secretly in a spare bedroom in their shared home.
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