> Fuel injection conversions are something I specialize in. What kind of temperatures/pressures/chemical exposure are you expecting for your prints? You should

> Fuel injection conversions are something I specialize in. What kind of temperatures/pressures/chemical exposure are you expecting for your prints? You should probably start there, check for 3d printing materials that can actually handle those requirements, and then filter for printing technologies that fit the bill. I would imagine that would already break it down a lot.