Is that 3D object you just printed weak? Does it bend, break or snap loudly if you give it a loving squeeze? If so, you might consider 3D printing it in metal instead of wimpy plastic.
But how, you say? My printer can't do metal!
If that's the case, you might want to check out Optomec's line of 3D metal printers. And, um, you might also want to check your pocketbook, as these units are not actually affordable by individuals for home use.
Optomec offers three different systems based on their LENS technology: Laser Engineered Net Shaping. Basically a very high power laser (500-1000W) blasts at metal powder. The laser melts the powder in position where it fuses with adjacent layers. The three systems, the MR-7, 750 and 850-R differ somewhat in capabilities
The MR-7 and 750 have similar specifications, including a 300x300x300mm build chamber and 500W laser, but the 750 has more material capacity.
The 850-R is a larger unit with a huge build envelope of900x1500x900mm, a 1000W laser and a large material capacity.
According to Optomec, the machines can handle "a wide range of metals, including titanium, stainless steel, nickel, cobalt and other engineering alloys."