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Re: Machining an Egg



Original poster: David Speck <dave@xxxxxxxxxxxxxxxx>

Dave,

Current pennies are only a couple percent copper, and are mostly zinc inside.
I guess you could use old copper pipe, but copper melts at 1984 degrees F, not something you can achieve without a decent furnace, casting equipment, and protective gear. IMHO, it would be a lot easier to start from eBay rod stock.
Dave Speck

Tesla list wrote:
Original poster: "Dave" <dgoodfellow@xxxxxxxxxxxxxx>

Perhaps you could make a mold from an egg, get a few rolls of pennies, or scrap copper, and cast your own egg. Then it could be cleaned up on a lathe. Someone on the list probably knows some casting techniques and can advise.