Like most of us, [Clem] wants to 3D print in metal. Metal 3D printers do exist ... and chemicals when you aren’t using them. Since the parts might get hot, the plastic is PETG.

To find out how long 3D-printed metal parts are likely to last in the field, the Defense Advanced Research Projects Agency is providing up to $10.3M to a University of Michigan-led team.

The most notable LiquidMetal product has been the iPhone’s SIM ... To be clear, the company LiquidMetal does not make metal parts that are actually fluid. Quite the opposite: It specializes ...