Nanoe has released a product that could change metal 3D printing for many users.
zetamix
Zetamix 17-4PH: Advanced Metal Filament for Tougher, Lighter 3D Prints
Zetamix introduced a new metal filament for FFF devices, 17-4PH.
Nanoe’s Zetamix: FFF 3D Printing with Ceramic and Metal Filaments
Nanoe is one of several companies providing specialized 3D printer filaments.