A Brave New World of Instrument-Making?
January 8, 2011
An MIT researcher has made a flute via a 3D printer. It’s far from perfect, and they’ll have to work a lot on refinements. But whoa! Think what this could do for the economics of pipe-organ building!
Tip of the hat: Nelson Barden
RogerEvansOnline.com 
But the base material for most of these I’ve seen is dense foam or particle board, not solid wood … or metal. This may become interesting in a few decades.