Eagar wife's engagement ring (electron-beam-melted platinum-iridium)

Tom made his wife's engagement ring himself, electron-beam-melting platinum-iridium on the 4th floor of MIT Building 8 with an old radar power supply, nearly electrocuting himself. Used as illustration of unique vs. high-volume manufacturing.

I made my wife's engagement ring. I electron-beam-melted it over on the fourth floor of Building 8 with an old radar power supply, almost electrocuted myself. That's another story. My wife didn't know that until after we were married — I electron-beam-melted it out of platinum-iridium. Telling this story earlier this morning — Mike Tanyon made layers of sterling silver and silver, diffusion-bonded them or laminated them together in the furnace, rolled it and twisted it, then machined part of it and made his wedding band. There are different ways to do it. Ours are unique, one-of-a-kind wedding bands, simple objects.